Polysorbate 61, also known as polyoxyethylene (4) sorbitan monostearate consists of sorbitol, ethylene oxide, and stearic acid. It has a molecular formula of C32H62O10. At room temperature, it is in the form of pale-yellow to amber-colored oily liquid or paste. It is an O/W emulsifier with an HLB value of 9.6. It is soluble in ethanol, ethyl acetate, and toluene. It can also be dispersed in water. 

MOLECULAR FORMULA: C32H62O10 

MOLECULAR WEIGHT: 606

Technical Information of Polysorbate 61

According to Q/GDRH 012-2020, other parameters are available upon request.

Parameters Unit Standard value

Acid value mg KOH/g ≤3.0

Saponification value mg KOH/g 95~115

Hydroxyl value mg KOH/g 165~195

Moisture w/% ≤3.0

Advantages of Polysorbate 61

Polysorbate is used as an emulsifier, solubilizer, stabilizer, diffuser, and lubricant 

Can be used in industry 

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