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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, it 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 cosmetic industry and as lubricant in textile industry.
Specification
According to GB29220-2012,other parameters are available upon request. |
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Parameters |
Unit |
Standard value |
Fatty acid |
w/% |
85~92 |
Sorbitol |
w/% |
14~21 |
Acid value |
mg KOH/g |
≤15 |
Saponification value |
mg KOH/g |
176~188 |
Hydroxyl value |
mg KOH/g |
66~80 |
Moisture |
w/% |
≤1.5 |
Residue on ignition |
w/% |
≤0.5 |
Pb |
mg/kg |
≤2 |
Application
1. This product is used as an emulsifier in the pharmaceutical, cosmetic, textile, paint, and explosive industries, and as a textile oil;
2. Used as an emulsifier in oil deepening mud;
3. Used as a dispersant in the paint industry;
4. Used as a co-solvent and rust inhibitor in petroleum products.
Packing
25kg/bag or as per request.