Surfactants
REACH
Polysorbate 20
CAS Number
9005-64-5
EC Number
500-018-3
E Number
E432
FEMA Number
FEMA 2915
Abbreviation
PS-20
What is Polysorbate 20?
Polysorbate 20 (CAS 9005-64-5), commercially known as Tween 20 and approved as E432 in food applications, is a nonionic surfactant derived from sorbitol and lauric acid.
Where is Polysorbate 20 used?
- Food and beverage: E432 stabilizes emulsions in baked goods and ice cream
- Flavor concentrates: prevents separation and improves texture consistency
- Personal care: solubilizes fragrance and essential oils into water-based products such as toners, micellar waters and light lotions
- Pharmaceuticals: PS-20 stabilizes protein-based biologics and solubilizes active ingredients in oral and topical formulations
- Household cleaning and industrial degreasers: low-foam wetting agent and emulsifier in surface cleaners
- It functions as an emulsifier, solubilizer and stabilizer in food, cosmetic and pharmaceutical manufacturing.
Commercial specifications
- Food-grade (FCC, E432-compliant), USP/NF and Ph. Eur. grades
Other Names (Synonyms)
Tween 20|PEG(20)sorbitan monolaurate|Alkest TW 20|Sorbitan, monododecanoate, poly(oxy-1,2-ethanediyl) derivs.|Sorbitan, monolaurate, polyoxyethylene derivs.|Atlas G 7596P|Atlas G 7596J|Polyoxyethylene Span 20|PS-20|E432
What are the physical properties of Polysorbate 20?
Melting Point 98.9 °C (decomp)
Boiling Point >100 °C
Density 1.1 g/cm³
Flash Point >230 °F
Appearance Yellow liquid
Color Amber
Odor mild alcohol odor
Form viscous liquid
Water Solubility 100 g/L
Vapor Pressure <1.4 hPa (20 °C)
Refractive Index n 20/D 1.468(lit.)
pH 6-8 (50g/l, H2O, 20℃)
Which trade and regulatory codes apply to Polysorbate 20?
HS Code 34021300
Storage Class 10 - Combustible liquids
WGK (Germany) 1