Tween-40, Emulsifier T-40, Polyoxyethylene Sorbitan Monopalmitate
Properties:
Tween-40 is an amber oily liquid. Relative density: 1.05-1.10. HLB value is 15.6. Tween 40 is soluble in water, diluted acid, diluted alkalis, and most organic solvents, insoluble in vegetable oil. It is also called Polysorbate-40.
The Wikipedia said, Polysorbates are a class of emulsifiers used in some pharmaceuticals and food preparation. They are often used in cosmetics to solubilize essential oils into water-based products. Polysorbates are oily liquids derived from ethoxylated sorbitan (a derivative of sorbitol) esterified with fatty acids.
The number following the ‘polyoxyethylene’ part means the different -R group in the structure fomula. Other polysorbate emulsifiers also have Polysorbate-60, Polysorbate-80. Polysorbate-81 and Polysorbate-85.
CAS No.:
9005-66-7
Molecular Formula:
C62H123O26
Structure Formula:
Specifications:
| Item | Index |
|---|---|
| Appearance | Amber oily liquid |
| Acid value | 2mgKOH/g Max. |
| Saponification value | 40-55mgKOH/g |
| Hydroxyl value | 85-100mgKOH/g |
| Water | 3.0% Max. |
Uses:
Tween-40 is used as an emulsifier, solubilizer, stabilizer, diffusant, fiber lubricant, etc.
Packing and Storage:
In 200kg iron drum/plastic drum. Handle with care. Tween-40 should be stored in a cool, dry, and draughty place. Shelf life is two years. Then, Tween-40 can still be used if qualified after re-check.
Synonyms:
Emulsifier T-40, Polyoxyethylene sorbitan monopalmitate, Polysorbate-40.
Note:
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