Polysorbate 40, also known as polyoxyethylene sorbitan monopalmitate, consists of sorbitol, ethylene oxide, and palmitic acid. It has a molecular formula of C62H122O26. At room temperature, it is in the form of a yellow to orange viscous liquid or pastes at room temperature. Polyoxyethylene 20 sorbitan monopalmitate is an O/W emulsifier with an HLB value of 15.6. It is soluble in water, ethanol, ethyl acetate, and toluene.

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CAS NO.: 9005-66-7

E NO.: E434

MOLECULAR FORMULA: C62H122O26

MOLECULAR WEIGHT: 1284.60

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According to GB29222-2012, other parameters are available upon request.

Parameters Unit Standard value

Acid value mg KOH/g ≤2.0

Saponification value mg KOH/g 41~52

Hydroxyl value mg KOH/g 90~107

Moisture w/% ≤3.0

Residue on ignition w/% ≤0.25

Pb mg/kg ≤2

Oxyethylene w/% 66.0~70.5

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Advantages of polysorbat 40

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Polysorbate 40 has numerous applications including, acting as an emulsifier, wetting agent, foaming agents, lubricant, solubilizer, antistatic agent, dispersant and chemical intermediate 

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