Polysorbate 80 (CAS 9005-65-6), also known as Tween-80, is a non-ionic surfactant and emulsifier with the chemical formula C24H44O6 (C2H4O) n. Easily soluble in water, soluble in ethanol, vegetable oil, ethyl acetate, methanol, toluene, insoluble in mineral oil. It becomes gelatinous at low temperature and recovers after being heated. It smells very bad and tastes slightly bitter.
Character
Easily soluble in water, soluble in ethanol, vegetable oil, ethyl acetate, methanol, toluene, insoluble in mineral oil. It becomes gelatinous at low temperature and recovers after being heated. It smells very bad and tastes slightly bitter. It is helpful for the dispersion of phthalocyanine green.
Function application
Tween-20 is laurate; Tween-60 is stearate; Tween-80 is oleate, which has emulsifying effect.
It can be used as a wetting agent for suspension. Nonionic surfactant.
Usage and dosage: used as emulsifier when preparing oil in water emulsion or cream. It can also be used as a solubilizing aid for oils (such as volatile oil).
It is used as a wetting agent in sulfur lotion.
| Items of Analysis | Standard | Result |
| Appearance | Light yellow to yellow oily liquid | |
| Acid Value (mg KOH/g) | ≤2.0 | 1.0 |
| Saponification Value (mg KOH/g) | 45~55 | 47.9 |
| Hydroxyl Value (mg KOH/g) | 65~80 | 72.2 |
| Residue on Ignition (w/%) | ≤0.25 | 0.17 |
| Heavy metal (%) | <0.001 | <0.001 |
| Moisture (w/%) | ≤3.0 | 2.3 |
| Lead Pb (mg/kg) | ≤2 | <2 |
| Arsenic AS (mg/kg) | ≤3 | <3 |
| Oxyethylene (w/%) | 65.0-69.5 | 68.1 |
Packing
200kg/drum or as customer's requirements
