IRO Surfactant » Tween-65, Polysorbate-65

Tween-65, Polysorbate-65

CAS No.:


Molecular Formula:


Structure Formula:


Tween-65 (Polysorbate-65) is yellow waxy solid. It is soluble in ethanol, isopropanol and mineral oil. Tween-65 HLB value: 10.5.


AppearanceAmber to light yellow oily liquid
Acid value2mgKOH/g Max.
Saponification value45-55mgKOH/g
Hydroxyl value65-80mgKOH/g
Water3.0% Max.


Tween-65 is used as an emulsifier in medicine, food, textiles, cosmetics. Polysorbate-65 is also used as a stabilizer and wetting agent etc.

Packing and Storage:

200KG wide-mouthed iron drum/100KG wide-mouthed plastic drum. Handle with care; stored in cool, dry, and draughty place, shelf life is 2 years. Tween-65 can still be used if qualified after re-check.

Handle with care; Tween-65 is stored in a cool, dry, and draughty place. Its shelf life is 2 years. Then, Tween 85 can still be used if qualified after re-check.


Emulsifier T-65; Polyoxyethylene Sorbitan Tristearate; Polyethylene glycol sorbitan tristearate.