SHANGHAI TOPFINE CHEMICAL CO., LTD

Ethylene Glycol Mono-tert-butyl Ether Cas 7580-85-0 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:19:47+0900

https://www.topfinechem.com/products/ethylene-glycol-mono-tert-butyl-ether-7580-85-0-wholesale.html

Ethylene glycol mono tert butyl ether, also known as tert-butyl ethylene glycol, is an organic solvent. It is commonly used as a solvent for the production of coatings, adhesives, and inks. It has low volatility, high solvency, and low toxicity, making it a preferred solvent for many industrial applications.

SPECIFICATION OF ETHYLENE GLYCOL MONO-TERT-BUTYL ETHER
ItemData
AppearanceColorless Liquid with Fruit Flavor
Molecular Structural FormulaCh3cooch(ch3)2
Relative Molecular Weight102.1
Boiling Point℃89
Melting Point℃-74.3
Refractive Index (20℃)1.3773
Ignition Point℃460
Flash Point4.4（close)
16（opening)
Kinematic Viscosity(20℃）m2/s0.6527
Evaporation Heat Kj/kg33.1
Specific Heat Capacity Kj/ (kg.k）2.2
Upper Explosive Limit% (v/v)8
Lower Explosive Limit% (v/v)1.8

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Ethylbenzene Cas 100-41-4 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:18:34+0900

https://www.topfinechem.com/products/ethylbenzene-100-41-4-wholesale.html

A colorless transparent liquid with an aromatic odor.

As one of the common aromatic hydrocarbons, Ethylbenzene Cas 100 41 4 is an aromatic organic compound mainly used in the petrochemical industry as an intermediate in the production of styrene.

SPECIFICATION OF ethylbenzene from benzene
ItemIndex
Csa no.:100-41-4
AppearanceColorless or Light Yellow Transparent Liquid, No Mechanical Impurities, No Free Water
Alkalinity of Aqueous Extract (ph)6.0-8.0
Purity, %≥99.899.9
Xylene, %≤0.150.1
Cumene, %≤0.050.03
Diethylbenzene, %≤0.0010.001
Sulfur, %≤
0.0003

For more information about price of ethylbenzene per kg and ethylbenzene uses, please feel free to contact us!

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Ethyl Acrylate Cas 140-88-5 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:16:31+0900

https://www.topfinechem.com/products/ethyl-acrylate-140-88-5-wholesale.html

Ethyl Acrylate Cas 140 88 5 Wholesale

Colorless liquid, volatile, flammable. Melting Point < -72 ° C, boiling point 99.8 ° C, 43 ° C (13.7 KPA-RRB- , relative density 0.9234(20/C ° c) , refractive index 1.4057, flash point (closed cup)1C ° c, vapor pressure (2C ° c)3KPA kpa, heat of vaporization 0.35 kj/g, specific heat capacity 1J97Gj/(g C ° c) . Slightly soluble in water, 2G soluble in 100ml water at 20 ° C, miscible with ethanol and ether, soluble in chloroform. It is easy to aggregate after long storage.

SPECIFICATION OF ETHYL ACRYLATE
ItemUnitSpecification
Appearance
Colorless Tranaparent Liquid with Pungent Smell
Content%(gc)99.5% Min
Water ContentWt,%0.05% Max
Color(apha)10max
Free Acid (Calculated by Acrylic Acid)Wt,%0.005% Max
Polymerization InhibitorWt, Ppm15±5

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Dimethyl Carbonate Cas 616-38-6 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:14:54+0900

https://www.topfinechem.com/products/dimethyl-carbonate-616-38-6-wholesale.html

Dimethyl Carbonate Cas 616-38-6 Wholesale

Colorless transparent liquid with pungent odor. The melting point is 2-4°C, the boiling point is 90.2°C, the relative density is 1.073 (20/4°C), the refractive index is 1.3697, the flash point (open cup) is 21.7°C, and the viscosity is 0.664mPa·s. Soluble in organic solvents such as ethanol and ether, insoluble in water.

SPECIFICATION OF dimethyl carbonate as a green reagent
ItemIndex
PremiumFirst Grade
Content%≥99.9599.9
Methanol Content,% ≤0.010.02
Water Content,% ≤0.010.1
Chroma(pt-co)no ≤510
Acidity(calculated by H+)mmol/100g ≤0.010.02
Density （20℃ G/cm³）1.071±0.005
AppearanceColourless Transparent Liquid Without Mechanical

For more information about diethyl carbonate price, please feel free to contact us!

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There are many cyclohexane manufacturers, but we are one of the best choices for you.

Dehydroacetic Acid Cas 520-45-6 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:13:32+0900

https://www.topfinechem.com/products/dehydroacetic-acid-520-45-6-wholesale.html

Dehydroacetic Acid Cas 520-45-6 Wholesale
Dehydroacetic acid natural is a multifunctional preservative used in cosmetics, personal care, and pharmaceutical products. It is a white, crystalline solid that is soluble in water and acts as a broad-spectrum preservative by inhibiting the growth of bacteria, yeast, and mold. Dehydroacetic acid, as one of the common feed supplements and feed additives, is approved for use in many countries, including the European Union and the United States, and is considered to be a relatively safe preservative when used in appropriate concentrations.

SPECIFICATION OF dehydroacetic acid safe
ItemIndex
Cas No520-45-6
Einecs No208-293-9
Molecular Formula C8h8o4
Molecular Weight168.15
AppearanceBeige to Light Yellow Powder, Odorless, Slightly Sour
Melting Point109℃-112℃
Solubility25℃，g/100g
Ethanol3
Glycol1.7
Olive Oil＜1.6
Glycerol＜0.1
Water＜0.1
CharacterIt is Insoluble in Water, and the Ph Value of Saturated Aqueous Solution is 4. Stable to Heat, Non Hygroscopic, Volatile with Water Vapor when Heated.

DEHYDROACETIC ACID USES

Dehydroacetic acid (DHA) Cas 520-45-6 is a chemical compound that finds various applications in different fine chemical industries, including skincare, cosmetics, and the food industry. Its versatile nature and beneficial properties have made it a popular ingredient in these sectors.

Dehydroacetic Acid for Skin:

In skin care, dehydroacetic acid is known for its preservative properties. It helps inhibit the growth of microorganisms and extends the shelf life of cosmetic products. By preventing the growth of bacteria, fungi, and molds, dehydroacetic acid helps maintain the safety and efficacy of skincare formulations, especially those that contain water or other moisture-rich ingredients. Additionally, its broad-spectrum antimicrobial action makes it an effective ingredient in products like lotions, creams, and serums.

Dehydroacetic Acid in Cosmetics:

Dehydroacetic acid is also widely used in cosmetics due to its ability to stabilize and preserve formulations. It helps prevent product degradation caused by exposure to air, light, or temperature fluctuations. By maintaining the stability of cosmetics, dehydroacetic acid ensures that the products remain effective and safe for use over an extended period.

Dehydroacetic acid in food:

Furthermore, dehydroacetic acid is approved for use as a food additive by regulatory bodies in many countries. It is primarily used as a preservative in food products, especially those that are prone to microbial contamination. DHA helps inhibit the growth of bacteria and molds, thus extending the shelf life of various food items. It is commonly used in processed foods, sauces, dressings, and beverages.

It is important to note that dehydroacetic acid is considered safe for use within the specified limits set by regulatory authorities. However, as with any ingredient, individual sensitivity or allergies may occur, and it is advisable to check the ingredient list and consult a healthcare professional if needed.
For more information about dehydroacetic acid price and buy dehydroacetic acid, please feel free to contact us!

There are many cyclohexane manufacturers, but we are one of the best choices for you.

Cyclohexanone Cas 108-94-1 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:12:40+0900

https://www.topfinechem.com/products/cyclohexanone-108-94-1-wholesale.html

Cyclohexanone Cas 108-94-1 Wholesale
Cyclohexanone is a six-carbon molecule with a ketone functional group. It is a colorless liquid with a characteristic odor, and is used as a starting material in the synthesis of various chemicals such as nylon and resins.

SPECIFICATION OF CYCLOHEXANONE
ItemIndex
PremiumFirst GradeQualifier Products
AppearanceClear Liquid Without Precipitation and Turbidity at 18.3-25.6℃
Chroma(platinum-cobalt) no ≤101520
Density （20℃ G/cm³）0.777-0.782
Purity% (m/m)≥99.999.799.5
Benzene, mg/kg≤50100800
N-hexane, mg/kg≤200500800
Methylcyclohexane, mg/kg≤200500800
Methylcyclopentane, mg/kg≤150400800
Distillation Range,℃≤11.52
Sulfur,mg/kg ≤125
Non Volatile Matter, mg/100ml ≤1510

For more information about cyclohexanone price and cyclohexanone use, please feel free to contact us!

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There are many acrylic acid manufacturers, but we are one of the best choices for you.

Cyclohexane Cas 110-82-7 Wholesale(2024年04月26日)

topfinechem — 2024-04-26T17:11:47+0900

https://www.topfinechem.com/products/cyclohexane-110-82-7-wholesale.html

Cyclohexane Cas 110-82-7 Wholesale
Cyclohexane is a six-carbon cyclic hydrocarbon with the molecular formula C6H12. It is a colorless, flammable liquid that is commonly used as a solvent and in the production of adipic acid and caprolactam, which are precursors to the synthesis of nylon.

SPECIFICATION OF CYCLOHEXANONE
ItemIndex
PremiumFirst GradeQualifier Products
AppearanceClear Liquid Without Precipitation and Turbidity at 18.3-25.6℃
Chroma (platinum-cobalt)no ≤101520
Density （20℃ G/cm³）0.777-0.782
Purity% (m/m)≥99.999.799.5
Benzene, mg/kg≤50100800
N-hexane, mg/kg≤200500800
Methylcyclohexane, mg/kg≤200500800
Methylcyclopentane, mg/kg≤150400800
Distillation Range,℃≤11.52
Sulfur, mg/kg ≤125
Non Volatile Matter, mg/100ml ≤1510

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Aromatic Hydrocarbons(2023年11月24日)

topfinechem — 2023-11-24T10:57:00+0900

https://www.topfinechem.com/products/aromatic-hydrocarbons/

Aromatic hydrocarbons are the collective name for benzene and its carbon and hydrogen-only derivatives, which are hydrocarbon compounds with one or more benzene rings in their molecular structure. The simplest and most important aromatic hydrocarbons are benzene and its congeners toluene, xylene, ethylbenzene, etc.

AROMATIC HYDROCARBONS BENEFITS
Aromatic hydrocarbons, also known as arenes, have several benefits including:

Fuel: Aromatic hydrocarbons are used as fuel additives, due to their high energy density and low volatility.

Solvents: They are widely used as solvents in various industrial processes, due to their non-reactivity and low toxicity.

Intermediates: Aromatic hydrocarbons are used as intermediates in the synthesis of a variety of chemicals such as pharmaceuticals, dyes, and plastics.

Aroma: Aromatic hydrocarbons are also used in perfumes, fragrances, and flavors, due to their pleasant aroma.

Pesticides: Some aromatic hydrocarbons, such as pyrethroids, are used as insecticides and pesticides.

AROMATIC HYDROCARBONS PRODUCTION
Aromatic hydrocarbons are a class of organic compounds that contain one or more aromatic rings, such as benzene, toluene, and xylene. These compounds are widely used as raw materials in the production of various chemicals and plastics, such as polyethylene terephthalate (PET) and polyurethane.

The production of aromatic hydrocarbons typically involves two main processes: extraction and refining. In the extraction process, crude oil or natural gas is processed to extract the desired hydrocarbons, including aromatics. This process involves fractional distillation, in which the different hydrocarbons are separated based on their boiling points.

Once the aromatics are extracted, they undergo a refining process to remove impurities and convert them into the desired products. This refining process may involve various techniques, such as catalytic reforming, which converts naphtha into higher-octane aromatics; alkylation, which combines smaller molecules to form larger ones; and transalkylation, which converts alkylated aromatics into the desired product.

The production of aromatic hydrocarbons is a complex process that requires specialized equipment and expertise. The use of advanced technologies, such as catalysts and process control systems, has enabled manufacturers to produce high-quality aromatics efficiently and cost-effectively.

In addition to their use as raw materials in the production of chemicals and plastics, aromatic hydrocarbons are also used as solvents, fuels, and intermediates in the manufacture of pharmaceuticals and other products. They play a vital role in many industries and are essential in modern society.

WHY CHOOSE TOPFINE AROMATIC HYDROCARBONS
producing high-quality aromatic hydrocarbons that meet strict industry standards and customer requirements.
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Competitive pricing: TOPFINE may offer competitive pricing for their aromatic hydrocarbon products, ensuring that customers receive good value for their investment.

Excellent customer service: TOPFINE may prioritize providing excellent customer service and support, ensuring that their customers' needs are met and questions are answered in a timely and helpful manner.
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Expertise:
TOPFINE may have extensive experience and knowledge in the production and supply of aromatic hydrocarbons, which enables them to provide tailored solutions to meet specific customer needs.

Reliability: Customers may trust TOPFINE to consistently provide reliable and timely delivery of their products.

Customization: TOPFINE may be able to provide customized products and solutions to meet the unique requirements of their customers.

AROMATIC HYDROCARBONS APPLICATIONS
Aromatic hydrocarbons have a wide range of applications in various industries. Some of the common applications of these compounds are:
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Production of fragrances and flavors:
Aromatic hydrocarbons are used as key ingredients in the production of fragrances and flavors. They help to create the characteristic aromas and tastes of various products, such as perfumes, cosmetics, and food products.

Production of plastics:
Aromatic hydrocarbons are used as raw materials in the production of various types of plastics, including polyethylene terephthalate (PET) and polyurethane. These plastics are used in a wide range of products, such as packaging materials, textiles, and construction materials.
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Production of synthetic fibers:
Aromatic hydrocarbons are used in the production of synthetic fibers, such as nylon and polyester. These fibers are used in various applications, including clothing, upholstery, and carpets.
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Production of detergents:
Aromatic hydrocarbons are used as surfactants in the production of detergents and cleaning products. They help to reduce the surface tension of water and improve the cleaning performance of these products.

Production of fuels:
Aromatic hydrocarbons are used as components in gasoline and diesel fuels. They help to improve the octane rating of gasoline and the cetane rating of diesel, which improves the performance of these fuels.

Production of pharmaceuticals:
Aromatic hydrocarbons are used as intermediates in the production of various pharmaceuticals, such as antibiotics, anti-inflammatory drugs, and anticancer drugs.

As a professional fine chemicals manufacturer, TOPFINE FINE CHEMICALS has high-quality bulk and fine chemicals for sale. Welcome to contact us if needed.

Pharmaceutical Intermediates(2023年11月24日)

topfinechem — 2023-11-24T10:56:23+0900

https://www.topfinechem.com/products/pharmaceutical-intermediates/

The so-called pharmaceutical intermediates, that is, the production process of pharmaceutical products, the use of raw materials, materials, excipients, and other intermediate pharmaceutical products. In fact, many pharmaceutical intermediates manufacturers believed that it is some chemical raw materials or chemical products used in the process of drug synthesis.

INTERMEDIATE PHARMACEUTICAL PRODUCTS APPLICATIONS
Intermediate pharmaceutical products have a wide range of applications in the pharmaceutical industry. Some of the common applications are:

API synthesis: Intermediate pharmaceutical products are used as building blocks in the synthesis of Active Pharmaceutical Ingredients (APIs). They serve as starting materials for the synthesis of complex organic molecules, which are then further processed to produce the final API.

Process optimization: Intermediate pharmaceutical products can be used to optimize the manufacturing process of APIs. By using intermediates that are easier to synthesize or purify, the overall process efficiency can be improved, leading to cost savings and higher yields.

Drug discovery: Intermediate pharmaceutical products can be used in drug discovery to identify new drug candidates. By synthesizing and testing different analogues of known drugs, new compounds with improved properties can be identified.

Chemical research: Intermediate pharmaceutical products are also used in chemical research to develop new synthetic methodologies and explore new chemical reactions. They serve as valuable tools for chemical synthesis and can help advance the field of organic chemistry.

Contract manufacturing: Intermediate pharmaceutical products can be supplied to contract manufacturing organizations (CMOs) that specialize in the production of APIs. These CMOs can use the intermediates to synthesize APIs on behalf of pharmaceutical companies.

In summary, intermediate pharmaceutical products such as Cas 929 06 6 have a range of applications in the pharmaceutical industry, including API synthesis, process optimization, drug discovery, chemical research, and contract manufacturing. They play a crucial role in the development and production of drugs and are essential in the pharmaceutical supply chain.

WHAT CAN BE PHARMACEUTICAL INTERMEDIATES USED AS?
Pharmaceutical intermediates can be used in several ways in the synthesis and production of pharmaceutical drugs:
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Building blocks: They can be used as building blocks to create the active pharmaceutical ingredient (API) with the desired properties and potency.
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Starting materials: They can be used as starting materials for chemical reactions that produce the final API.

Improving manufacturing processes: They can be used to improve the efficiency, yield, and safety of the overall pharmaceutical manufacturing process.

PHARMACEUTICAL INTERMEDIATES CHALLENGES
The production of pharmaceutical intermediates faces several challenges, including:
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Addressing these challenges requires a combination of technical expertise, process innovation, and effective supply chain management. Companies that can successfully navigate these challenges are well-positioned to provide high-quality pharmaceutical intermediates that meet the needs of the industry.

Process optimization: The process of manufacturing pharmaceutical intermediates involves several steps that require careful optimization to ensure efficient and cost-effective production. This requires a thorough understanding of the chemical reactions involved, as well as the properties of the raw materials and intermediates used.

Quality control: Pharmaceutical intermediates must meet strict quality standards to ensure their safety and efficacy in the final drug product. This requires rigorous quality control measures throughout the production process, including testing and analysis of raw materials, intermediates, and final products.

Environmental regulations: The production of pharmaceutical intermediates can have a significant impact on the environment due to the use of hazardous chemicals and waste products. Compliance with environmental regulations is essential to ensure safe and sustainable production practices.

Intellectual property: Pharmaceutical intermediates often involve proprietary processes and technologies that are protected by patents. Developing new intermediates or improving existing ones can require significant investments in research and development.

Supply chain management: The production of pharmaceutical intermediates often involves multiple suppliers and manufacturers, making supply chain management a complex and challenging task. Ensuring a reliable and cost-effective supply chain is critical to maintaining the production schedule and meeting customer demand.

WHAT IS THE DIFFERENCE BETWEEN API AND PHARMACEUTICAL INTERMEDIATE?
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API stands for Active Pharmaceutical Ingredient, which is the active chemical substance in a drug product that provides the intended therapeutic effect. Pharmaceutical intermediates, on the other hand, are the compounds that are synthesized during the production of API.

In other words, pharmaceutical intermediates are the chemical compounds that are used to manufacture API. These compounds may or may not have any therapeutic effect on their own, but they are essential in the production process of API.
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Pharmaceutical intermediates including Cas 75-31-0 are often produced in large quantities and used as starting materials for the synthesis of API. They undergo several chemical reactions and purification steps to form the final API. Pharmaceutical intermediates may also be used as building blocks for the synthesis of other complex organic compounds.

In summary, the main difference between API and pharmaceutical intermediate is that API is the active chemical substance in a drug product that provides the intended therapeutic effect, while pharmaceutical intermediates are the compounds that are synthesized during the production of API. Pharmaceutical intermediates are essential in the manufacturing process of API, but they do not have any therapeutic effect on their own.

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Food Additives & Feed Additives(2023年11月24日)

topfinechem — 2023-11-24T10:55:49+0900

https://www.topfinechem.com/products/food-additives-feed-additives/

Added to food to maintain or improve the safety, freshness, taste, texture, or appearance of food substances are known as food additives. Feed supplements and feed additives are small amounts or trace substances added during the production, processing, and use of feed, which are used in small amounts of feed but have significant effects. TOPFINE, the leading feed and food additives supplier , supplies a wide range of organic feed additives and food additives wholesale for you!

FOOD ADDITIVES FUNCTION
Food additives serve a variety of functions in the food industry. Here are some common functions of food additives:

Preservatives: Food additives such as sorbic acid and sodium benzoate are used to prevent the growth of bacteria, mold, and yeast in food products, thereby increasing their shelf life.

Antioxidants: Antioxidants such as ascorbic acid and tocopherols are used to prevent the oxidation of fats and oils, which can cause rancidity and off-flavors.

Sweeteners: Sweeteners such as sugar and high-fructose corn syrup are used to add sweetness to food products. Artificial sweeteners like aspartame and sucralose are also commonly used as low-calorie alternatives.

Thickeners and stabilizers: Thickeners and stabilizers such as xanthan gum and carrageenan are used to improve the texture and stability of food products, such as sauces, dressings, and ice cream.

Colorants: Colorants such as beta-carotene and annatto are used to enhance the color of food products, making them more appealing to consumers.

Flavor enhancers: Flavor enhancers such as monosodium glutamate (MSG) are used to enhance the flavor of food products.

Acidity regulators: Acidity regulators such as citric acid and phosphoric acid are used to adjust the pH of food products, which can affect their flavor, texture, and shelf life.

Emulsifiers: Emulsifiers such as lecithin and mono- and diglycerides are used to prevent oil and water from separating in food products, such as mayonnaise and salad dressings.

Anti-caking agents: Anti-caking agents such as calcium silicate and magnesium carbonate are used to prevent the clumping of powders, such as spices and baking mixes.

In summary, food additives serve a variety of functions in the food industry, including preservation, oxidation prevention, sweetness, texture and stability improvement, color enhancement, flavor enhancement, acidity regulation, emulsification, and anti-caking. Food manufacturers use these additives to improve the quality, safety, and shelf life of food products, as well as to make them more appealing to consumers.

WHAT IS THE DIFFERENCE BETWEEN FOOD ADDITIVE AND FEED ADDITIVE
Food additives and feed additives are both substances added to food or feed to improve its quality and safety, but there is a key difference between the two:
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Food additives are substances added to human food to enhance its flavor, texture, color, or preservation.

Feed additives, on the other hand, are substances added to animal feed to improve its nutritional value, enhance its flavor or preservation, or promote the growth and health of the animals being fed.

Both food additives and feed additives are subject to regulatory approval for safe use, but the regulations and safety standards for each can differ. Additionally, the health and safety implications of consuming food products from animals that have been fed feed additives may also be different from those associated with consuming food additives directly.

BENEFITS of food additives & ADVANTAGES OF FOOD ADDITIVES
Food additives are substances that are added to food to enhance its flavor, texture, appearance, and shelf life. Here are some benefits and advantages of using food additives:
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Nutrition:
Some food additives, such as vitamins and minerals, are added to food products to increase their nutritional value. This can help address nutrient deficiencies in the population and improve overall health.
Texture:
Food additives are also used to improve the texture of food products. For example, thickeners and stabilizers are used to give sauces and soups a smoother texture, while leavening agents are used to make baked goods lighter and fluffier.

Convenience:
Food additives are often used to make food more convenient and easy to use. For example, emulsifiers are used to keep oil and water from separating in salad dressings, while stabilizers are used to keep ice cream from melting too quickly.

Flavor:
Food additives are often used to enhance the flavor and aroma of food products. For example, vanilla extract is used to add flavor to baked goods, while MSG is used to enhance the savory flavor of meat and vegetables.
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Safety:
Some food additives are used to make food safer by inhibiting the growth of harmful bacteria, such as those that cause foodborne illness. For example, nitrates and nitrites are commonly used as preservatives in cured meats to prevent the growth of bacteria that can cause botulism.

Preservation:
Many food additives are used as preservatives to help prevent spoilage and increase the shelf life of food products. This can help reduce food waste and improve the availability of nutritious food.

ORGANIC FEED/FOOD ADDITIVES APPLICARIONS
Organic feed and food additives are used in organic farming and food production to enhance the quality and nutritional value of organic crops and animal products. Here are some common applications of ...
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Feed additives for livestock:
Organic feed additives such as probiotics, prebiotics, and enzymes are used to improve the gut health of livestock, enhance nutrient absorption, and boost growth and productivity. Organic minerals such as zinc, copper, and selenium are also added to feed to maintain animal health and prevent deficiencies.

Soil amendments:
Organic fertilizers such as compost, manure, and bone meal are used to replenish the soil with nutrients and improve soil health. Organic soil amendments can also help to control soil pH and reduce soil erosion.
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Pest and disease control:
Organic pesticides and fungicides made from natural ingredients such as neem oil, pyrethrin, and copper are used to control pests and diseases in organic crops. Beneficial insects such as ladybugs and lacewings are also used for pest control.

Food additives for processed foods:
Organic food additives such as lecithin, carrageenan, and pectin are used to enhance the texture, stability, and flavor of organic processed foods such as sauces, dressings, and baked goods.
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Nutritional supplements for humans:
Organic food supplements such as vitamins, minerals, and herbal extracts are used to enhance the nutritional value of organic foods and provide health benefits to humans.

In summary, organic feed and food additives are used in organic farming and food production to improve the quality, nutritional value, and safety of organic crops and animal products. These additives can help to enhance growth and productivity, control pests and diseases, improve soil health, and provide health benefits to humans.

As a professional fine chemicals company, TOPFINE FINE CHEMICALS has high-quality fine chemical wholesale for sale. Welcome to contact us if needed.

Paint & Coating Additives(2023年11月24日)

topfinechem — 2023-11-24T10:55:10+0900

https://www.topfinechem.com/products/paint-and-coating-additives/

As a professional paint and coating additives manufacturer, Topfine Chemical provides professional solutions for raw materials in the paint and ink industry. Our raw materials are characterized by replacing high pollution, green and safe products. Our additives for paints and coatings are mainly used in the production of resins, solvents, and other additives in coatings.

WHY BLEND IN AN ADDITIVE TO PAINT?
Solvent is often not taken seriously for people in the action in coating, think it is volatile component, always volatilize finally drop and do not stay in paint film, won't have very big effect to the quality of paint so. Actually otherwise, the factor such as the dissolving force of all sorts of dissolvent and volatilization rate to the lacquer that make is in production, store, construction and paint film burnish, adhesion, surface state wait for various performance to have great effect.

WHY ARE PAINTS AND COATINGS ADDITIVES IMPORTANT？
Coating additives not only play an important role in the application of coating, but also play an important role in each link of coating production.
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First of all, the role of additives of paint and coating in the production stage, mainly including initiation, dispersion, defoaming, emulsification, filter aid and so on.

Next, it is playing an important role in the storage stage of coating, basically it is to prevent coating surface crust, bottom layer precipitation, improve viscosity, and thixotropic agent, radiation-proof agent, dizzy dye agent.

These coating additives play a vital role not only in the construction stage, but also in every link of coating production.

ADDITIVES FOR PAINTS AND COATINGS TECHNOLOGY
Sec-butyl acetate can serve as a solvent with a variety of substances including alcohol, ether, ester, ketone and hydrocarbon, and is commonly utilized as a diluting agent in coatings, inks, and adhesives due to its affordability and relatively low toxicity. Additionally, it has the ability to function as a quick drying agent for delicate materials.

1
In metal flash paint, you can use sec-butyl acetate to dissolve cellulose acetate butyrate, the preparation of 5%~20% solution.
2
Sec-butyl acetate has good solubility for many substances, and can be used as a solvent for manufacturing nitrocellulose paint, acrylic paint, polychlorinated ester paint and so on.
3
butyl acetate is low toxicity, cheap price, good solubility, moderate volatilization speed, can replace some toxic and harmful solvents in ink.
4
Sec-butyl acetate has the characteristics of strong solubility, moderate volatilization speed and low toxicity, which can improve the comprehensive quality of adhesive products.

5
Sec-butyl acetate has the characteristics of strong solubility, moderate volatilization speed and low toxicity, which can improve the comprehensive quality of adhesive products.

6
Used as a thinner,Sec-butyl acetate is soluble with most solvents such as alcohol, ether, ester, ketone and hydrocarbon, and is an ideal diluent with low cost and low toxicity in coatings, inks and adhesives. It can also be used as a fast drying agent for sensitive materials.

For more information about types of paint additives, please feel free to contact us!

As one of the most professional fine chemical suppliers, TOPFINE FINE CHEMICALS has high-quality bulk and fine chemicals for sale. Welcome to contact us if needed.

Fine Chemical Products(2023年11月24日)

topfinechem — 2023-11-24T10:54:36+0900

https://www.topfinechem.com/products/

Fine chemicals are specialty chemical products that are manufactured in small quantities and have a high level of purity. They are used as intermediates or building blocks in various industries such as pharmaceuticals, agrochemicals, electronics, and personal care. Fine chemical products often have specific properties, such as reactivity, that make them suitable for specific applications, and they are typically more expensive than commodity chemicals. Our approach to fine and specialty chemical distribution at TOPFINE is to be your most dependable and resourceful fine chemicals and solvents partner. We take pleasure in being fine chemicals manufacturing experts.

INE CHEMICAL PRODUCTS FEATURES
1
Fine chemical products are typically high-purity, specialty chemicals that are used in a wide range of industries, including pharmaceuticals, electronics, cosmetics, and food and beverage production. Here are some common features of fine chemical products:

High purity: Fine chemical products are typically very pure, with impurity levels of less than 1% or even less than 0.1%. This high level of purity ensures that the products meet strict quality standards and are suitable for use in sensitive applications.

Tailored properties: Fine chemical products can be tailored to have specific properties that make them ideal for particular applications. For example, a fine chemical used in pharmaceuticals might need to have a specific molecular weight, solubility, or reaction rate.

Precise composition: Fine chemical products are typically manufactured using precise, controlled processes that ensure consistent composition and quality from batch to batch.

Small-scale production: Fine chemical products such as feed supplements and feed additives are often produced in smaller quantities than commodity chemicals, as they are typically used in specialized applications. This allows for greater control over the manufacturing process and ensures product consistency.

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High value: Fine chemical products are often high-value products, as they are used in specialized applications where quality and performance are critical. This means that they are typically more expensive than commodity chemicals.

Specialty applications: Fine chemical products are used in a wide range of specialty applications, including pharmaceuticals, electronics, coatings, and flavors and fragrances. They are often used in high-tech, high-value industries where precision and performance are critical.

Regulatory compliance: Fine chemical products are subject to strict regulatory requirements, particularly additives for paints and coatings, pharmaceutical, and food industries. Manufacturers of fine chemical products must comply with these regulations and provide the necessary documentation and certifications to ensure product safety and quality.

In summary, organic fine chemical products are typically high-purity, specialty chemicals that are tailored to have specific properties for use in specialized applications. They are produced using precise, controlled processes and are subject to strict regulatory requirements to ensure product safety and quality.

WHAT ARE INDUSTRIAL FINE CHEMICALS USED FOR?
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As one of the most professional fine chemical companies in China, TOPFINE mainly deals with SPRAYLAT brand conductive coatings of PPG, mainly used in electromagnetic interference (EMI), radio frequency (RFI) protection, high-performance electrostatic discharge (ESD) and radar protection in consumer electronics, aerospace, automotive industry, military, medical, base station rooms, etc.

TOPFINE is the agent of COSCO Kansai KANSAI coating products, mainly used for silicone high temperature resistant paint, water-based anti-corrosion paint, fluorocarbon coating, anti-static paint for storage tanks, self-cleaning functional coatings, and other products. Fine chemical industries applications mainly include bridges, port machinery, shipyards, storage tanks anti-corrosion, high temperature resistance, and other occasions.

WHY CHOOSE TOPFINE AS YOUR FINE CHEMICAL PRODUCTS SUPPLIER
Quality: As a professional fine chemicals & scientific company, TOPFINE emphasizes its commitment to producing high-quality organic fine chemicals products that meet or exceed industry standards. The company uses advanced fine chemical manufacturing processes and equipment to ensure product consistency and purity.

Expertise: TOPFINE has a team of experienced chemists and technicians who can provide technical support and guidance throughout the production process. The company also offers research and development services to help customers develop custom solutions for their specific needs.

Customization: TOPFINE can offer customized products and solutions tailored to customers' specific needs. The company has a flexible production process that can accommodate small-scale and large-scale production runs. The range of fine chemical customization includes aromatic hydrocarbons, paint additives, feed supplements and feed additives, and so on.

Reliability: TOPFINE prides itself on its ability to consistently deliver products on time and in the required quantities. The company has a robust supply chain and logistics infrastructure that enables efficient and timely delivery of products to customers.

Environmental responsibility: TOPFINE is committed to sustainability and environmentally responsible manufacturing practices. The company has implemented various measures to reduce waste, conserve energy, and minimize its environmental impact.

Regulatory compliance: TOPFINE is compliant with all relevant regulatory requirements and can provide the necessary documentation and certifications. The company has a strict quality control process to ensure product quality and safety.

Cost-effectiveness: TOPFINE offers competitive pricing and can help customers optimize their production processes to reduce costs. The company also offers flexible payment terms and financing options to make its products more accessible to customers.

FINE CHEMICAL MANUFACTURING CHALLENGES & SOLUTIONS
Fine chemical manufacturing involves the production of high-purity, high-quality chemicals used in various industries such as pharmaceuticals, cosmetics, and electronics. Here are some common challenges faced in fine chemical manufacturing and possible solutions:

Contamination: Fine chemicals especially pharmaceutical intermediates must be produced in a clean and controlled environment to prevent contamination, which can affect their purity and quality. Solutions include implementing proper cleaning procedures, using high-quality raw materials, and maintaining proper ventilation and air filtration systems.

Cost: Fine chemical manufacturing can be expensive due to the high cost of raw materials and the need for specialized equipment and processes. Solutions include optimizing production processes to minimize waste and reduce energy consumption, utilizing automation to increase efficiency, and exploring alternative raw materials or production methods.

Safety: Fine chemical products can be hazardous, and proper safety measures must be in place to protect workers and the environment. Solutions include implementing safety protocols and training programs, conducting regular safety audits, and using appropriate personal protective equipment.

Regulatory compliance: Fine chemical manufacturing is subject to strict regulations governing product quality, safety, and environmental impact. Solutions include keeping up-to-date with regulatory requirements, implementing quality control measures, and maintaining detailed records to ensure compliance.

Scale-up: Scaling up the production of types of fine chemicals can be challenging due to the need for specialized equipment and processes. Solutions include carefully planning the scale-up process, conducting pilot tests to identify potential issues, and collaborating with experienced industrial fine chemicals partners or suppliers.

In summary, fine chemical manufacturing faces challenges related to contamination, cost, safety, regulatory compliance, and scale-up. However, these challenges can be addressed through careful planning, optimization of processes, use of appropriate equipment and raw materials, and implementation of safety and quality control measures.

For more information about fine chemicals list, please feel free to contact us!

WHAT IS THE ROLE OF ACRYLIC ACID?(2023年)

topfinechem — 2023-09-20T12:38:48+0900

https://www.topfinechem.com/products/acrylic-acid-79-10-7-wholesale/
https://www.topfinechem.com/products/acrylic-chemicals/
https://www.topfinechem.com/

WHAT IS ACRYLIC ACID?

Acrylic acid is an organic compound with the chemical formula C3H4O2. It is a colorless liquid with a pungent odor and is soluble in water, ethanol, and ether. It is chemically active and can easily polymerize in air. It can be reduced to propionic acid by hydrogenation and can form 2-chloropropionic acid by addition with hydrogen chloride. It is mainly used to prepare acrylic acid resin.

Acrylic acid is used to prepare acrylic acid resin and other organic synthesis. It can be obtained by oxidizing acrylic aldehyde or hydrolyzing acrylonitrile, and can also be obtained by the reaction of carbon monoxide, acetylene, and water on a nickel catalyst.

Waterborne acrylic acid anticorrosive coatings are usually used in the field of moderate and mild corrosion protection. They are usually composed of three coats of primer, intermediate coat, and topcoat to form a coating system and play a role. The primer is the foundation of the entire coating, used to prevent the penetration of water, ions, and oxygen, and has good adhesion and corrosion resistance. It can be used with waterborne epoxy and bio acrylic acid primer, and can also form a composite system with solvent-based coatings. The intermediate coat is mainly used to improve the adhesion with the topcoat and primer, make the adhesion between two layers of coating more closely, increase the thickness of the coating, and improve the shielding ability of the entire coating system. The topcoat has the functions of beautiful decoration and preventing penetration, and is usually a clear paint without pigments, used to improve the weather resistance of the entire coating.

WHAT ARE THE EFFECTS OF ACRYLIC ACID?

The effects of acrylic products are:

Acrylic acid is an important organic synthetic raw material and synthetic resin monomer, and is a fast-polymerizing ethylene monomer.

Acrylic acid is mostly used to produce acrylic acid esters such as methyl, ethyl, butyl, and hydroxyethyl esters. Acrylic acid and its esters can undergo homopolymerization and copolymerization. The resulting polymers are used in the industrial sectors of synthetic resin, synthetic fiber, high-water-absorbing resin, building materials, coatings, etc.

Acrylic acid can undergo characteristic reactions of carboxylic acids and react with alcohols to obtain corresponding esters. Acrylic acid and its esters can undergo polymerization reactions to generate homopolymers or copolymers when mixed with other monomers. Monomers that can usually copolymerize with acrylic acid include acrylamides, acrylonitrile, ethylene-containing monomers, styrene, and butadiene. These polymers can be used to produce various plastics, coatings, adhesives, elastomers, floor waxing agents, and paints.

SHANGHAI TOPFINE CHEMICAL CO., LTD was established in 2014 and has been focusing on the chemical industry for more than 9 years. As a leading fine chemicals manufacturer in the Chinese industrial products market in the chemical industry, it provides customers with thousands of high-quality chemical raw materials from bulk fine chemicals china to fine chemicals and related value-added services. With a rich distribution network, it ensures fast, accurate, and reliable delivery.

WHAT ARE THE USES OF DIMETHYL CARBONATE?(2023年)

topfinechem — 2023-09-20T12:38:15+0900

https://www.topfinechem.com/products/green-solvent/
https://www.topfinechem.com/products/dimethyl-carbonate-616-38-6-wholesale.html

UNDERSTANDING DIMETHYL CARBONATE

Dimethyl carbonate is an organic compound that can be viewed as the dimethyl ester of carbonic acid. It is a flammable clear liquid with a boiling point of 90°C and is insoluble in water. It can be used as a methylation reagent. Compared to other methylation reagents such as iodomethane and dimethyl sulfate, dimethyl carbonate is less toxic and can be biodegraded.

Dimethyl carbonate has a wide range of applications. It can replace phosgene as a carbonylation reagent, replace dimethyl sulfate (DMS) as a methylation reagent, and serve as a low-toxicity excellent solvent and a potential gasoline additive.

APPLICATIONS OF DIMETHYL CARBONATE

Replacement of Phosgene as a Carbonylation Reagent

Phosgene has the advantage of high reaction activity, but its byproduct is highly toxic and corrosive. Therefore, it faces enormous environmental pressures. Against the background of increasing environmental policy pressure, phosgene will gradually be replaced by safer reaction reagents, such as dimethyl carbonate, one of the common green organic solvents which have similar nucleophilic reaction centers. When its carbonyl group is attacked by a nucleophile, the carbonyl-oxygen bond breaks to form a carbonyl compound, and the byproduct is methanol. Therefore, dimethyl carbonate can replace phosgene as a safe reaction reagent for synthesizing carbonate derivatives, such as aminomethylformate pesticides, polycarbonate (PC), isocyanates (MDI, TDI, etc.), among which polycarbonate (PC) is the field with the largest demand for dimethyl carbonate in the future.

Replacement of Dimethyl Sulfate as a Methylation Reagent

Dimethyl sulfate is similar to phosgene and also has high toxicity, with high sulfate pollution byproducts. When the methyl carbon of dimethyl carbonate is attacked by a nucleophile, its alkoxy bond breaks to produce the methylated product. The effect is similar to that of DMS, but the reaction yield is higher, and the process is simpler. Its main uses include the synthesis of organic intermediates, pharmaceuticals, and pesticides.

Low-Toxicity Excellent Solvent

Made by a professional dimethyl carbonate supplier, dimethyl carbonate has excellent solubility, a narrow melting and boiling point range between 4℃ and 93℃, high surface tension, low viscosity, and a high evaporation temperature and rate. Therefore, it can be used as a low-toxic solvent for the coatings and pharmaceutical industries. Dimethyl carbonate also has high flash point, low vapor pressure, and high lower explosive limit in the air, making it a green solvent that combines cleanliness and safety.

Potential Gasoline Additive

The oxygen content in dimethyl carbonate molecules is high, reaching 53%, and it can effectively increase the octane rating. It also has properties such as immiscibility, low toxicity, and rapid biodegradability. When the same oxygen content is achieved, the amount of dimethyl sulfate used in gasoline is 77% less than that of methyl tert-butyl ether (MTBE), thereby reducing the total emissions of hydrocarbons, carbon monoxide, and formaldehyde from automobile exhausts. In addition, it overcomes the shortcomings of commonly used gasoline additives being soluble in water and polluting groundwater sources, making dimethyl carbonate one of the most promising gasoline additives to replace MTBE.

Now the price of fine chemical wholesale is reasonable, if you have needs, please contact us.

WHAT ARE THE USES OF ISOPROPYL ACETATE?(2023年)

topfinechem — 2023-09-20T12:37:40+0900

https://www.topfinechem.com/products/isopropyl-acetate-108-21-4-wholesale.html
https://www.topfinechem.com/products/ink-solvents/
https://www.topfinechem.com/products/acetic-acid-64-19-7-wholesale.html

INTRODUCTION TO ISOPROPYL ACETATE

Isopropyl acetate is a colorless liquid with a pleasant fruity aroma. It is slightly soluble in water and can be mixed with most solvents, such as alcohols, ketones, and ethers. It is commonly referred to as a "universal solvent" due to its excellent solubility for various synthetic and natural resins.

Isopropyl acetate is a colorless transparent liquid with a fruity aroma. It is flammable, explosive, and volatile. It is slightly soluble in water and can be mixed with many organic solvents such as alcohols, ethers, and ketones. It can effectively dissolve many synthetic resins. It is obtained by esterification of acetic acid and isopropyl alcohol under sulfuric acid catalysis, followed by neutralization, dehydration, and distillation. Isopropyl acetate is produced from acetic acid and isopropyl alcohol.

Isopropyl acetate is mainly used as a solvent for coatings, printing inks, and is also a commonly used dehydrating agent in industry, an extractant in pharmaceutical production, and a component of fragrances.

APPLICATIONS OF ISOPROPYL ACETATE
Isopropyl acetate is used in the production processes of leather coatings, leather PU resin synthesis, adhesives, and other products

Isopropyl acetate has similar volatility to butanone, and the isopropyl acetate price advantage over butanone, as well as the fact that it is not a controlled chemical, make it unnecessary to file for approval to purchase. Thus, replacing butanone with isopropyl acetate can reduce production costs, bringing significant benefits to businesses.

Isopropyl acetate is used in high-grade inks

Some high-end inks use isopropyl acetate as environmentally friendly ink solvents due to its high cost-effectiveness. Ethyl acetate evaporates too quickly, propyl acetate is too expensive, toluene is too toxic, but isopropyl acetate meets the needs of high-end inks.

Isopropyl acetate is used as a solvent for coatings

Isopropyl acetate has a volatility that is in between ethyl acetate and butyl acetate. It has a pleasant aroma and strong solvency, making it an effective solvent for many synthetic resins such as cellulose, nitrocellulose, styrene, and acrylic resins. It is widely used in high-end coatings such as cellphone and toy paints.

Isopropyl acetate is used as a dehydrating agent for acetic acid recycling

Isopropyl acetate can form azeotropic mixtures with water, and compared with the selective coefficients of many solvents, isopropyl acetate has a significant advantage. It is widely used in industrial acetic acid recycling equipment in industries such as PTA, cellulose acetate, and vinyl.

Isopropyl acetate is used in the pharmaceutical and pesticide industries

Isopropyl acetate has strong dissolving power, extraction ability, and skin permeability, as well as a suitable volatility, making it suitable for use in pharmaceutical and pesticide production.

SHANGHAI TOPFINE CHEMICAL CO., LTD was established in 2014 and has been focusing on the chemical industry for over 9 years. As a leader in the Chinese industrial products market, we provide customers with thousands of high-quality raw materials and value-added services, from bulk chemicals to fine chemicals. With a rich distribution network, we ensure fast, accurate, and reliable delivery.

As one of fine chemical companies, we will do our best to meet all the needs of customers.

APPLICATIONS OF PROPYLENE GLYCOL(2023年)

topfinechem — 2023-09-20T12:37:05+0900

https://www.topfinechem.com/products/paint-and-coating-additives/
https://www.topfinechem.com/products/propylene-glycol-25322-69-4-wholesale.html

PROPYLENE GLYCOL IN COSMETICS

Propylene glycol is a transparent, colorless, viscous liquid with hygroscopic properties. This ingredient can be found in cosmetics such as ointments, facial masks, toners, and makeup removers. Besides its moisturizing ability, it can also help prevent skin decay and has some mild irritant effects on skin and eyes.

However, it cannot retain water in the stratum corneum of the skin at a high rate. Propylene glycol also has a slight irritating effect on the skin, and it is also potentially irritating to the skin, causing redness, rashes, and peeling.

APPLICATIONS OF PROPYLENE GLYCOL

Propylene glycol has a wide range of applications, including clothing, plastics, cosmetics, food, synthetic resins, and can also be used as antifreeze, deicing agent, heat transfer medium, liquid detergent, and so on.

Provided by professional coating additives manufacturer, propylene glycol is a chemical raw material and not a component of alcohol. It does not pose significant danger or harm to the human body and is mainly used as a raw material in the production of cosmetics during the emulsification process. It can also be used as an emulsifier in daily products, such as toothpaste and soap. Propylene glycol has good adhesion and wetting properties and is widely used in the medical and industrial fields. It is also used as a lubricant additive for lubricants.

PROPYLENE GLYCOL IN CLEANERS

Cleaners are ubiquitous in daily life and have a significant impact on the cleaning of hard surfaces. What makes them so powerful?

Many people are curious. In fact, the solvent plays an important role. Propylene glycol solvents produced by propylene glycol wholesale suppliers have good surface wetting and reduce surface tension, which plays a good role in removing stubborn dirt on hard surfaces. Its demand in the market is constantly increasing.

Among the solvent family, propylene glycol ether-based solvents have become a popular new star in the chemical industry in recent years. Propylene glycol ether-based solvents belong to the diol ether solvent category. Diol ethers have two strong solubility functional groups: the ether bond and hydroxyl (or ester) group. The former has lipophilic properties and can dissolve hydrophobic compounds, while the latter has hydrophilic properties and can dissolve water-soluble compounds, hence the nickname of "universal" solvent.

These properties, similar to surfactants, play a role in wetting, penetrating, dissolving, and suspending stains in cleaning products. Therefore, they are widely used in fabric washing, hard surface cleaning, industrial cleaning, and other areas.

As a fine chemicals manufacturer, we will provide sorts of related products for sale, anything you need, please contact us.

WHY DO WET WIPES CONTAIN PROPYLENE GLYCOL?(2023年)

topfinechem — 2023-09-20T12:36:34+0900

https://www.topfinechem.com/products/propylene-glycol-25322-69-4-wholesale.html
https://www.topfinechem.com/products/green-solvent/

Propylene glycol is a colorless, odorless, viscous, and transparent liquid that has a variety of applications in many industries, including clothing, plastics, cosmetics, food, synthetic resins, and more. It can also be used as antifreeze, de-icing agent, heat transfer medium, and liquid detergent, among others.

WHAT IS PROPYLENE GLYCOL?

Propylene glycol is a colorless, odorless, viscous, and transparent liquid that is a fatty mixture containing two hydroxyl groups. Because both hydroxyl groups in the propylene glycol molecule can undergo chemical reactions, propylene glycol is an important chemical intermediate used in plastics, clothing, synthetic resins, cosmetics, food, and various other fields. It can also be used as antifreeze, de-icing agent, heat transfer medium, and liquid detergent.

WHY DO WET WIPES CONTAIN PROPYLENE GLYCOL?

Reason one: moisturizing. Wet wipes are used on the skin, and it is desired to keep the skin moist after wiping. At this moment, the role of propylene glycol is similar to glycerin.

Reason two: antibacterial. The antibacterial activity of propylene glycol can slow down the growth rate of bacteria on wet wipes, thereby protecting the safety of users. This is particularly important when wet wipes are used as feminine and baby hygiene products.

In fact, the toxicity and irritancy of propylene glycol are quite low. Its "toxicity" mainly manifests as an impact on the nervous system, which only occurs when extremely high doses are ingested. (For example, animal experiments have shown that when the daily dose per kilogram of body weight exceeds 13.2 grams, propylene glycol can cause central nervous system suppression.) However, as long as it does not exceed the prescribed limit, a small amount of ingestion or skin contact is relatively safe.

APPLICATION FIELDS OF PROPYLENE GLYCOL

Food industry: used in dairy products, meat products, baked goods, various beverages, candy, seasoning, and other food products.

Pharmaceutical manufacturing: health foods, substrates, fillers, biological drugs, pharmaceutical raw materials, etc.

Industrial products: petroleum industry, manufacturing industry, agricultural products, scientific research and development, batteries, precision castings, etc.

Daily chemical products: Provided by the professional green solvent supplier, it can be used as facial cleanser, beauty cream, toner, shampoo, toothpaste, shower gel, mask, etc.

Feed additives and veterinary drugs: pet canned food, animal feed, nutritional feed, genetically modified feed research and development, aquatic feed, vitamin feed, animal drug products, etc.

Experimental reagents: used for various types of research and development.

Other industries: can be used as a substitute for glycerin in the flavoring of tobacco and as an antifreeze and moisturizer.

There are many propylene glycol wholesale suppliers in China, but we are one of the best choices for you.

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WHAT INDUSTRIES CAN SODIUM GLUCONATE BE USED IN?(2023年)

topfinechem — 2023-09-20T12:36:03+0900

https://www.topfinechem.com/products/
https://www.topfinechem.com/products/sodium-gluconate-527-07-1-wholesale.html

WHAT IS SODIUM GLUCONATE?
Sodium gluconate, also known as sodium pentahydroxy organic acid, is a white crystalline particle or powder with a relative molecular mass of 218.14 and a melting point of about 206 ℃. 10% aqueous solution pH 6.2~7.8, easily soluble in water, slightly soluble in alcohol, insoluble in ether, and has a certain salty taste. It is widely used in food, construction, medicine, water treatment, electroplating, development, and other industries, especially in the food industry. With the continuous improvement of people's living standards and health care consciousness, the requirements for food nutrition and flavor are getting higher and higher, and the food industry is developing towards the road of health with a diversified diet, green food, and low.

APPLICATIONS OF SODIUM GLUCONATE
Used in medicine
As one of the essential fine chemical products, sodium plays an important role in maintaining extracellular osmotic pressure and volume, regulating acid-base balance, and performing normal function of neuromuscular, and can effectively prevent the occurrence of hyponatremia syndrome.

Stabilizer
With excellent corrosion and scale inhibition, it is widely used as a water quality stabilizer. With obvious coordination effect, suitable for various formulations of molybdenum, silicon, phosphorus, tungsten, nitrite, etc.; corrosion inhibition rate increases with temperature; strong scale inhibition ability, strong complexation ability for calcium, magnesium and iron salts; as circulating and cooling water corrosion and scale inhibition agent to achieve extinction of public hazards.

Used as steel surface cleaning agent
If the steel surface needs platinum plating, chromium plating, tin plating, nickel plating to adapt to special purposes, the surface of its billets need to be strictly cleaned, so that the plating material and steel surface firmly combined, the addition of sodium gluconate in the cleaning agent will achieve very satisfactory results. 4. as a special cleaning agent for glass bottles with sodium hepta gluconate as the main formula of the glass bottle professional cleaning agent can improve the scaling force is not strong, easy to block the nozzle of the bottle washing machine and It is not ideal for bottle stickers and bottle neck rust; the trace residue after washing is not ideal for food safety (such as phosphate residue); the discharge of washing water becomes a public hazard (not in line with the national standards).

Construction industry
As water reducing agent and retarder: When a certain amount of sodium gluconate is added to cement, it can increase the plasticity and strength of concrete, and has a retarding effect, i.e., delaying the initial and final setting time of concrete. It can also be used in many industrial fields such as electroplating, film manufacturing, etc. The application prospect is very broad.

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APPLICATION SCOPE AND USE OF SODIUM SULFITE(2023年)

topfinechem — 2023-09-20T12:35:32+0900

https://www.topfinechem.com/products/sodium-sulfite-7757-83-7-wholesale.html
https://www.topfinechem.com/products/sodium-bisulfite-7631-90-5-wholesale.html

APPLICATION AND USE OF SODIUM SULFITE IN PAPER INDUSTRY

With the continuous development of paper industry, secondary fiber recycling is highly valued by paper industry, which can not only save paper cost, but also save forest resources, reduce energy consumption and help environmental protection. Sodium sulfite is a good performance deinking auxiliary, the role in deinking is to prevent the pulp from returning to yellow, and weak alkaline conditions for sodium sulfite deinking is more favorable for the removal of ink. In the absence of surfactants, in the case of 10% pulp concentration under the broken solution, the addition of 2% sodium sulfite has a significant effect. For old newspapers, the use of neutral sodium sulfite for deinking, sodium sulfite dosage of 3% to 4%, can obtain good deinking effect, can reduce the pollution load of wastewater, is conducive to the post-treatment of wastewater.

APPLICATION AND USE OF SODIUM SULFITE IN WATER TREATMENT INDUSTRY

In order to prevent the corrosion of boilers by dissolved oxygen in water, most boiler feed water needs deoxidation treatment. Sodium sulfite is one of the earliest chemical deaerators used to remove dissolved oxygen in water, and is widely used because of its advantages of being an inexpensive, convenient source, non-toxic and fast reaction with oxygen. Sodium sulfite is compounded with a stabilizer and catalyst, which can improve the stability of sodium sulfite and reduce the operating cost. Sodium sulfites reduction treatment method is one of the most environmentally friendly and energy-saving methods in the current chromium-containing wastewater treatment process, which can ensure that the effluent quality can meet the discharge standard and recycle chromium hydroxide, and the equipment and operation are also relatively simple, saving money and floor space.

APPLICATION AND USE OF SODIUM SULFITE IN CHEMICAL INDUSTRY

Sodium sulfite such as sodium bisulfite Cas 7631-90-5 is widely used in the chemical industry as raw material or auxiliary. The boiling reaction of sodium sulfite with sulfur is one of the main methods to produce sodium thiosulfate. In the process of sodium hydroxide removal from light brine production, the addition of Na2SO3 under alkaline conditions can remove the residual free chlorine. Sodium sulfite method is one of the internationally recognized mature and reliable refining methods for TNT industrialization. Sodium sulfite is widely used as a sulfonating agent in the synthesis of fine chemicals. sodium 4-methylbenzenesulfinate is an important intermediate in the synthesis of the new herbicide metsulfuron, which is obtained by the reduction of 4-methylbenzenesulfonyl chloride as raw material by sodium sulfite. Fluorocarbon surfactant is the most surface active surfactant so far. Fluorocarbon alkyl succinate sulfonate surfactant can be produced by esterification and sulfonation steps with octafluoropentanol, maleic anhydride and sodium sulfite as raw materials. Sodium sulfite is compounded with other corrosion inhibitors, which can greatly improve the corrosion inhibition effect.

APPLICATION AND USE OF SODIUM SULFITE IN FOOD INDUSTRY

It can be used as bleaching agent, preservative, relaxing agent, antioxidant, color preservative and freshness preservative in food processing. Sodium sulfite is an inhibitor of polyphenol oxidase (PPO) activity, which can effectively protect fruits and vegetables from browning and improve their added value.

Now the price of bulk and fine chemicals is reasonable, if you have needs, please contact us.

APPLICATIONS AND PROPERTIES OF PHTHALIC ANHYDRIDE(2023年)

topfinechem — 2023-09-20T12:34:56+0900

https://www.topfinechem.com/applications-and-properties-of-phthalic-anhydride.html

APPLICATIONS OF PHTHALIC ANHYDRIDE
Phthalic anhydride is now widely used in chemical, pharmaceutical, electronic, agricultural, coating, fine chemical and other industrial sectors. Phthalic anhydride in China is mainly used in the production of phthalic anhydride plasticizers, consuming about 60% of the total consumption of phthalic anhydride, 25% of dyes and paints, and about 15% of unsaturated resins and other products. Phthalic anhydride is an important organic chemical raw material, mainly used in the production of plastic plasticizers, alkyd resins, dyes, unsaturated resins, and certain pharmaceuticals and pesticides.

PROPERTIES OF PHTHALIC ANHYDRIDE
Phthalic anhydride properties are as follows:

Phthalic anhydride can be used instead of phthalic acid, mainly reacting with monohydric alcohols to form esters, such as dibutyl phthalate and dioctyl phthalate, which are important plasticizers. Phthalic anhydride condenses with polyols (such as glycerol and pentaerythritol) to produce polyarylate resins, which are used in the paint industry; if condensed with glycol and unsaturated acids, it produces unsaturated polyester resins, which can be used to manufacture insulation paint and glass fiber reinforced plastics. Phthalic anhydride is also a raw material for the synthesis of benzoic acid and terephthalic acid, and is also used in drug synthesis.

As one of fine chemical suppliers, we can offer sorts of fine chemicals for sale, if you have needs, please contact us.

Services(2023年06月12日)

topfinechem — 2023-06-12T17:30:10+0900

https://axispharm.com/

Bioanalytical Service
Bioanalytical Service for Small Molecule Drugs and Metabolites, Large Molecules – Peptides and Proteins, etc. LCMSMS Quantification, GCMS Quantification, HPLC, UPLC and ELISA.

Analytical Services
Analytical Services for Purity Test, Contaminant Test, Pesticide Screening, Essential Oil and Cosmetics Profiling and Quality Control – LCMS, GCMS, HPLC, HPIC, Maldi-TOF, HRMS, FTIR etc.

Proteomics Services
Protein Service
Protein Identification, Quantification – Label Free and iTRAQ, TMT, Post Translational Modification (PTM) analysis – Orbitrap Fusion Lumos, Q-Exactive plus, Maldi-TOF, etc.

Why Choose Our Products And Services
High quality
We guarantee the superior quality of our products by providing real analytical data, such as NMR spectra and HPLC-MS profiles for each lot.

Large selection
We offer a wide range of unique laboratory-made research tools many of which are not available elsewhere.

Competitive pricing
Our pricing is very competitive compared to many other reagent suppliers.

Quick support
We provide the highest level of technical support to our customers. Just call us and we will help you quickly!

Axispharm offers a wide range of unique laboratory-made research tools many of which are not available elsewhere.

APPLICATIONS OF MALEIC ANHYDRIDE(2023年06月18日)

topfinechem — 2023-06-12T17:29:40+0900

https://www.topfinechem.com/applications-of-maleic-anhydride.html

Used as raw materials for the production of 1,4-butanediol, γ-butyrolactone, tetrahydrofuran, succinic acid, unsaturated polyester resin, alkyd resin, etc. Also used in medicine and pesticides.

Used as a trapping agent in metal beneficiation

Used in organic synthesis, also used as synthetic fiber intermediates

In the production of pesticides used in the synthesis of organophosphorus insecticide malathion intermediate diethyl maleic acid, pyridazine thiophos intermediate 1-phenyl-3,6-dihydroxypyridazine, and pyrethroid insecticide aminopyralid, fungicide, intermediates of clothian, in addition, also used in the production of unsaturated polyester resin, ink additives, paper additives, coatings and pharmaceutical industry, food industry, etc.

It is mainly used in the production of unsaturated polyester resin, alkyd resin, pesticide malathion, high efficiency and low toxicity pesticide 4049, long-acting iodamide raw materials. It is also used as a raw material for the production of paints, maleic rosin, polymaleic anhydride, maleic anhydride-styrene copolymer. It is also the organic chemical raw material for the production of ink auxiliaries, paper auxiliaries, plasticizers and tartaric acid, fumaric acid, tetrahydrofuran, etc.

It is mainly used for the synthesis of unsaturated polyester tree ester, which is the raw material for the manufacture of automobile parts, ships, corrosion-resistant chemical equipment and daily necessities. Maleic anhydride (108-31-6) is also an important intermediate in the production of additives for lubricants, coatings, pesticides, fumaric acid, copolymers, food additives, etc. Its hydrogenated derivatives are succinic anhydride, 1.4-butanediol, r-J lactone and tetrahydrofuran.

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WHAT IS DIMETHYL CARBONATE?(2023年06月17日)

topfinechem — 2023-06-12T17:29:05+0900

https://www.topfinechem.com/what-is-dimethyl-carbonate.html

Dimethyl carbonate (DMC) is an organic compound that can be regarded as the dimethyl ester of carbonic acid. It is a flammable clarified liquid with a boiling point of 90°C, insoluble in water, and can be used as a methylation reagent. Compared to other methylation reagents, such as iodomethane and dimethyl sulfate, dimethyl carbonate is less toxic and biodegradable.

Preparation
Dimethyl carbonate is no longer commonly used as a raw material for the production of phosgene. Instead, it is produced by catalytic oxidation of methanol in the presence of oxygen, which is more environmentally friendly. Dimethyl carbonate can be methylated to aniline, phenol and carboxylic acid, but many reactions require high pressure. DBU can be added at reflux to DMC to catalyze the methylation of carboxylic acids by dimethyl carbonate by.

Uses
Dimethyl carbonate has a wide range of uses, replacing phosgene as a carbonylating agent, replacing dimethyl sulfate (DMS) as a methylating agent, and as a low-toxicity excellent solvent and potential gasoline additive.

SUBSTITUTION OF PHOSGENE AS CARBONYLATION AGENT
Photogas has the advantage of high reactivity, but the by-products of photogas are highly toxic and corrosive, so it faces great environmental pressure, and will be gradually eliminated under the background of increasing pressure of environmental policies. Dimethyl carbonate has a similar nucleophilic reaction center. When its carbonyl group is attacked by nucleophiles, the acyloxy bond is broken and a carbonyl compound is formed, and the by-product is methanol. Therefore, dimethyl carbonate can replace phosgene as a safe reaction reagent for the synthesis of carbonic acid derivatives such as carbamate pesticides, polycarbonate (PC), isocyanates (MDI, TDI, etc.), of which polycarbonate (PC) is the area with the largest demand for dimethyl carbonate in the future.

SUBSTITUTE FOR DIMETHYL SULFATE (DMS) AS A METHYLATING AGENT
Dimethyl sulfate is more similar to phosgene, and also has great toxicity, and the by-product sulfuric acid is more polluting. When the methyl carbon of dimethyl carbonate receives nucleophilic attack, its alkoxy bond is broken to produce methylation products with similar effect as DMS but with higher reaction yield and simpler process. The main applications include the synthesis of organic intermediates, pharmaceutical products, pesticide products, etc.

EXCELLENT SOLVENT WITH LOW TOXICITY
Dimethyl sulfate has excellent solubility, a narrow melting and boiling point range of 4℃~93℃, high surface tension and low viscosity, as well as a high evaporation temperature and fast evaporation speed, so it can be used as a low-toxic solvent in the coating industry and pharmaceutical industry. Dimethyl sulfate also has high flash point, low vapor pressure and high lower explosion limit in air, so it is a green organic solvent that combines cleanliness and safety.

POTENTIAL GASOLINE ADDITIVE
With a high oxygen content of 53% in the molecule, dimethyl sulfate is also capable of excellent octane boosting effects and has properties such as non-phase separation, low toxicity and rapid biodegradability. The amount of dimethyl sulfate used to achieve the same oxygen content in gasoline is 4.5 times less than that of methyl tertiary butyl ether (MTBE), thus reducing the total emissions of hydrocarbons, carbon monoxide and formaldehyde in vehicle exhaust. It also overcomes the disadvantages of commonly used gasoline additives that are easily soluble in water and pollute groundwater sources, so dimethyl sulfate will become one of the most promising gasoline additives to replace MTBE.

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WHAT ARE THE SPECIALTY AROMATICS?(2023年06月16日)

topfinechem — 2023-06-12T17:28:27+0900

https://www.topfinechem.com/what-are-the-specialty-aromatics.html

O-Xylene CAS：95-47-6

M-Xylene CAS：108-38-3

P-Xylene CAS：106-42-3

Ethylbenzene CAS：100-41-4

N-Propylbenzene CAS：103-65-1

Isopropylbenzene CAS：98-82-8

N-Butylbenzene CAS：104-51-8

Isobutylbenzene CAS:538-93-2

Sec-butylbenzene CAS:135-98-8

Tert-pentylbenzene CAS：2049-95-8

Benzene CAS：1196-58-3

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TOPFINE - FINE CHEMICAL SUPPLIER(2023年06月15日)

topfinechem — 2023-06-12T17:27:53+0900

https://www.topfinechem.com/topfine-fine-chemical-supplier.html

Our fine chemicals & scientific company moved into a new office on February 26, 2015, which is located in Shanghai Free Trade Zone. The specific address is Room 401, 4th Floor, Chengxin international Building, No. 188 Ona Road, Pudong New District, Shanghai. The new office area is 380 square meters, which is convenient for import and export business development, export declaration and import customs clearance.

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CONDUCTIVE COATING - CONDUCTIVE PAINT(2023年06月14日)

topfinechem — 2023-06-12T17:27:18+0900

https://www.topfinechem.com/conductive-coating-conductive-paint.html

Anti-electromagnetic wave interference shielding paint. Commonly known as: conductive paint. Conductive paint is a kind of paint that contains copper, silver and other compound particles as conductive particles, and has good conductive properties.

OVERVIEW
Conductive paint is a modern science and technology and the rapid development of special functional coatings, about half a century of development history. 1948, the United States announced the silver and epoxy resin into a conductive adhesive patent, which is the earliest public conductive coatings. China also began to research and apply conductive coatings in the 1950s. In recent decades, conductive coatings have been in the electronics, electrical, aviation, chemical, printing and other military, civilian industrial applications. Accordingly, the theoretical study of conductive coatings has also been rapidly developed, and to promote the application of increasingly mature and perfect technology.

FUNCTION
Conductive paint is the use of conductive metal powder added to specific resin materials in order to make paint coatings that can be sprayed, dried to form a paint film can play a role in the conductivity, thereby shielding the function of electromagnetic interference.

Shielding is the isolation of metal between two spatial areas to control the electric field, magnetic field and electromagnetic waves from one area to another area of induction and radiation. Specifically, the shield is used to surround the meta-parts, circuits, assemblies, cables or the entire system with interference sources to prevent the spread of interference electromagnetic fields outward; and the shield is used to surround the receiving circuits, equipment or systems to prevent them from being affected by external electromagnetic fields.

TYPES
Classified according to application characteristics.

1. Coatings used as conductors, such as: hybrid integrated circuits, printed wiring boards, keypad switches, heating paint for winter heating and frost protection of automobile glass, anti-fouling coatings for ships, etc.

2. Radiation shielding coatings, such as radio waves, electromagnetic wave shielding.

3. Anti-static coating

4. Other, such as electrochromic coating, photoelectric conductive coating.

For the conductive properties of conductive coatings, there are usually three kinds of characterization: volume resistivity or conductivity; surface resistivity; electrostatic decay rate.

WORKING PRINCIPLE
Conductive paint by spraying, brushing method, so that completely insulated non-metallic or non-conductive surface has the same characteristics as metal absorption, conduction and attenuation of electromagnetic waves, thereby playing a role in shielding electromagnetic interference. The emergence of conductive paint has effectively solved the problem of achieving electrical connection on non-metallic surfaces.

Conductive paint is an anti-electromagnetic wave interference paint made of electroplated silver particles, single component, labor-saving, time-saving, convenient, good adhesion, flat, strong cohesion, no loose particles, can be used for metal, composite materials for the substrate of cell phones, calculators, precision instruments, such as the inner wall of the shell spraying materials. After drying and curing the paint layer performance is stable, sprayed on the surface of the workpiece fine and smooth and pure silver conductive paint has excellent conductive properties, fine conductive particles to ensure the safety of electronic components.

In order to ensure the adhesion ability of the paint and the substrate, under normal circumstances, the conductive paint material is only recommended for use on the surface of PC, ABS and other non-metallic materials, if used on uncommon surfaces, may require priming agent with the use.

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OVERVIEW OF CONDUCTIVE COATINGS(2023年06月13日)

topfinechem — 2023-06-12T17:26:41+0900

https://www.topfinechem.com/overview-of-conductive-coatings.html

Conductive coatings are coatings that are coated on non-conductive substrates, and the coating itself has certain ability to conduct current and dissipate electric charge. According to its conductive type, it can be divided into resistive coatings, wave shielding coatings, wave absorbing coatings, heat generating coatings, anti-static coatings, electric field mitigation coatings, etc.

The main film-forming material of conductive coatings is polymer, so its conductive principle is mainly to study the conductivity of polymers. Conductive polymers can be divided into two categories: doped additive conductive polymers and intrinsic structure type conductive polymers. The conductive polymer itself does not have conductivity, and its conductivity is achieved by incorporating conductive particles; the intrinsic structure of the conductive polymer itself has inherent conductivity, and the polymer molecular structure provides conductive carriers. Due to the synthesis of intrinsic conductive coatings, construction has many difficulties, the cost is also higher, the performance is not satisfactory, has not yet reached the stage of mass production, so the actual application of conductive coatings are mostly doped conductive coatings.

Conductive coatings for different purposes, the required conductivity is also different. The table shows the resistivity of conductive coatings for several purposes.

Compared with other technical means of obtaining conductive films such as plastic plating and vacuum sputtering, conductive coatings have the advantages of simple equipment, easy construction, low cost and suitable for complex surface coating.

APPLICATION OF CONDUCTIVE COATINGS
Conductive coatings are widely used in the modern electronic industry, such as TV picture tube coated with conductive coatings, after the power off can exclude the remaining energy. In radio electronic devices, wave shielding, electrode terminal lead wires, tuning device of tape recorder, TV antenna, outer surface of cathode ray tube, wave conductor, radio reflector, reflector of radar intercepting paraboloid and other parts need to be coated with conductive coatings.

Using the conductive ability of conductive coatings, electrical energy can be converted into heat. Electric heat coating can be used to heat residential, industrial and agricultural buildings, and can also be made into food heaters, frost, snow and water mist removal for rear glass windows of automobiles. When used for indoor heating, electric mattress, electric foot warmer, because of the large coating area and low resistance, low voltage current can be used and there is no danger of contact. Electric heat paint can also be used as an anti-freeze device for oil pipelines and ship hulls in cold areas, and anti-icing on roof roads.

Conductive coatings can be used for anti-static and dissipative purposes. In industrial systems to transport gases, liquids and solid powder often use glass pipes, as an insulator of the glass in the process of conveying the material and the wall of the pipe friction will generate static electricity, resulting in the inner wall of the pipe caused by adsorption and blockage. If the inner wall of the pipe coated with cheap doping type (such as amorphous graphite as a conductive filler) coating, the minimum surface resistance of 110Ω-cm, static voltage reduced to the original 1/4 ~ 1/5. In addition, the surface of the conveyor belt, the outer surface of the aircraft shell, the surface of the video tape, printing press guide roller surface, etc., are also coated with conductive coatings to eliminate static electricity.

Conductive coatings can be used as insulation shielding. High-voltage plastic power cables treated with semi-conductive coatings have high dielectric strength and corona resistance level (i.e., suppressing dendrite discharge), which can act as insulation shield. Good shielding coating should have a specific volume resistance of ρv = 105Ω-cm. cable with a large amount of semi-conducting coating, so generally use inexpensive doped semi-conducting materials.

Electromagnetic shielding, anti-electromagnetic strike, in the current national defense construction has a very important significance, in the prevention of leaks, to prevent interference, to prevent the enemy's electromagnetic pulse impact damage means of protection, the coating is a convenient material to use, in the conductive coating based on the development of electromagnetic shielding coating is very meaningful work.

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CONDUCTIVE PAINT SPRAYING PROCESS INSTRUCTIONS(2023年06月12日)

topfinechem — 2023-06-12T17:26:02+0900

https://www.topfinechem.com/conductive-paint-spraying-process-instructions.html

PPG offers a wide range of high quality electronic products plastic spray conductive paint, plastic spray conductive paint services, quality assurance, timely delivery, first-class service! For all new and old customers a small number of samples are free samples!

According to the needs of different customers to determine the indicators of the product, from the cost and quality to meet customer requirements to the maximum extent. Product shell spraying conductive paint resistance indicators from 0.015 ohms per square centimeter to 3 ohms range, preferential prices, quality first!

The main processing products include: cell phone shell spray conductive paint, a variety of electronic medical equipment shell spray conductive paint, a variety of electronic instruments and instruments plastic shell inner layer spraying, car driving recorder shielding paint processing, GPS shell EMI coating, laptop shell spray conductive paint, base station room inside and outside wall conductive paint and all need to spray conductive paint products.

We warmly welcome new and old customers to visit us to discuss specific cooperation matters, and believe that the excellent product performance and perfect quality assurance system coupled with warm and thoughtful after-sales service will make you choose our company as an ideal long-term partner!

SPRAY CONDUCTIVE PAINT CONSTRUCTION BEFORE THE PREPARATION.
(1) spray gun caliber: 0.5MM²-0.8MM²

(2) paint dilution ratio: silver copper conductive paint: thinner = 1: 0.5 (weight ratio), no thinner models directly spray

SPRAY CONDUCTIVE PAINT CONSTRUCTION METHODS.
(1) dilution: conductive paint placed for a long time, the metal filler will precipitate, dilution must be fully stirred until no precipitate.

(2) workpiece cleaning: if there is a serious film release agent or other residual material, please use the shell wipe water cleaning.

(3) gun cleaning: must be cleaned with diluted water before use.

(4) gun debugging: gun fog not too loose (focus on some), gun air pressure is slightly smaller, oil volume slightly larger. Gun and workpiece distance 10CM (± Conductive paint sprayed on the workpiece with a sense of wetness.

(5) research workpiece difficulty nodes: first test spray conductive paint products first, according to the customer's request for test points, to see the distribution of nodes over the standard. Two ways to solve.

1. Spray conductive paint process timely adjustment, "focus on the start of the spray", " uniform painting ".

2. The inspectors use a brush to make up the over-standard points.

(6) Cross-painting method: It can spray a more uniform coating and ensure the film thickness is 10-14 microns. When spraying conductive paint with half barrel of hanging can (2KG), ten work pieces must be sprayed back to the gun (i.e.: re-stir the conductive paint with air pressure to prevent precipitation). In general, customers are not recommended to use the crane type spraying, because its conductive paint by diluting the metal powder easier to precipitate, can be used with a can spray gun conductive paint to ease the precipitation of conductive paint metal powder.

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