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Sorbitan tristearate, also known as STS, is synthesized by the esterification of sorbitan with stearic acid. It has a molecular formula of C60H112O8. At room temperature, it is in the form of a white to yellow granular solid. It has an HLB value of 2.1, which is fairly lipophilic. As a food additive, sorbitan tristearate can reduce the turbidity of vegetable oil containing high saturated fatty acids. It can also improve the fat crystal structure and stability in chocolate and margarine. In addition, it acts as an emulsifier in the cosmetic industry and as a lubricant in the textile industry.

Technical Information of Sorbitan Tristearate
According to GB29220-2012, other parameters are available upon request.

ParametersUnitStandard value
Fatty acidw/%85~92
Sorbitolw/%14~21
Acid  valuemg KOH/g≤15
Saponification valuemg KOH/g176~188
Hydroxyl valuemg KOH/g66~80
Moisturew/%≤1.5
Residue on ignitionw/%≤0.5
Pbmg/kg≤2

Advantages of Sorbitan Tristearate
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Wide range of applications; very useful as emulsifiers in food formulation and has multiple functions as food additives
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The sorbitan tristearate can disperse in in petroleum ether, mineral oil, and vegetable oil
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You can spot the existence of this sorbitan fatty acid ester in the food, cosmetics, and textile industries.
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Guangdong Huana Chemistry Co., Ltd. is a professional global chemical engineering company based in China. We provide emulsifier 492 and etc. Want know sorbitan sesquioleate other names or more? Please contact us.