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 tri stearate  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
 
Can disperse in in petroleum ether, mineral oil, and vegetable oil
 
Can be used in food and industry
 
Instructions on Use and Storage
STORAGE
Store in cool, dry place in tightly sealed packages, away from heat and light
TRANSPORTATION
Transport as non-dangerous goods
SHELF LIFE
1 year.
Packaging and Shipment
Packaging
25kg/bag (special packaging is available upon request)
Shipment
7-14 days after receiving payment
Port
Guangzhou, Shenzhen, Shanghai, Qingdao, etc.
 
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