Sorbitan Tristearate
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.
CAS NO.: 26658-19-5
E NO.: E492
MOLECULAR FORMULA: C60H112O8
MOLECULAR WEIGHT: 963.51
Technical Information of Sorbitan Tristearate
According to GB29220-2012, other parameters are available upon request.
|
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 |
Advantages of Sorbitan Tristearate
Wide range of applications; very useful as emulsifiers in food formulation and has multiple functions as food additives
The sorbitan tristearate can disperse in in petroleum ether, mineral oil, and vegetable oil
You can spot the existence of this sorbitan fatty acid estersin the food, cosmetics, and textile industries.
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