Tween-65 is yellow waxy solid. An oily liquid derived from PEG-ylated sorbitan (a derivative of sorbitol) esterified with fatty acids. It is soluble in ethanol, isopropanol, and mineral oil. HLB value is 10.5.
The Tween-65 emulsifier is also known as Polysorbate-65. Polysorbate 65, the full name polyoxyethylene (20) sorbitan tristearate. There are three stearic acids in its molecule structure while polysorbate-60 only has one.
Tween-65 is not natural as it is made from chemical synthesis between sorbitan fatty acid with ethylene oxide.
|Appearance||Amber to light yellow oily liquid|
|Acid value||2mgKOH/g Max.|
Tween-65 is used as an emulsifier in medicine, food, textiles, cosmetics. It is also used as a stabilizer and wetting agent etc.
200kg wide-mouthed iron drum/100KG wide-mouthed plastic drum. Handle with care. Stored in cool, dry, and draughty place. The shelf life is 2 years. Tween-65 can still be used if qualified after re-check.
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