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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