Tween 20, whose common commercial names includes Alkest TW 20 and Polysorbate 20, is a mild nonionic surfactant formed by the ethoxylation of sorbitan before the addition of lauric acid which is a medium-chain fatty acid found mainly in coconut oil. It is allowed to be used as the emulsifier, detergent, dispersant, solvent and stabilizer, etc. in a number of fields such as pharmaceutical, chemical, food, textile and other industries due to its stability and relative non-toxicity.
Density: 1.11g/mLat 20°C
Melting Point: 98.9 °C (decomp)
Boling Point: 100 °C
Flash Point: >230°F
Water Solubility: 100 g/L
Solubility: 100 g/L
Vapor Presure: <1.4 hPa (20 °C)
Appearance: Bright yellow liquid
Specific Gravity: 1.090～1.130 (20/20℃)
Color: Amber
PH: 6-8 (50g/l, H2O, 20℃)
Storage Condition: Store below +30°C.
Stability: Stable. Incompatible with strong oxidizing agents.
Sensitive: Easily absorbing moisture
Refractive Index: n20/D 1.468(lit.)
MDL: MFCD00165986
Physical and Chemical Properties: Density 1.106-boiling point 100°C, ND20 1.4685-1.4715-water solubility 100g/L
