Tween-65, Emulsifier T-65
Properties:
Tween-65 is a 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. Three stearic acids are in its molecule structure, while polysorbate-60 only has one.
Tween-65 is unnatural as it is made from the chemical synthesis of sorbitan fatty acid and ethylene oxide.
CAS No.:
9005-71-4
Molecular Formula:
C100H194O28
Structure Formula:
Specifications:
| Item | Index |
|---|---|
| Appearance | Amber to light yellow oily liquid |
| Acid value | 2mgKOH/g Max. |
| Saponification value | 45-55mgKOH/g |
| Hydroxyl value | 65-80mgKOH/g |
| Water | 3.0% Max. |
Uses:
Tween-65 is used as an emulsifier in medicine, food, textiles, and cosmetics. It is also used as a stabilizer and wetting agent etc.
Packing and Storage:
200kg wide-mouthed iron drum/100 kg 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.
Synonyms:
Emulsifier T-65.
Note:
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