Specification Sheet
Product Name TWEEN® 20,
viscosity 250-450 mPa.s (25 °C)
Product Number 93773
Product Brand SIGMA
CAS Number 9005-64-5
 
TEST SPECIFICATION
APPEARANCE (COLOR) Almost Colorless to Very Dark Yellow
APPEARANCE (FORM) Viscous Liquid
REM. ON APPEARANCE MAY GET TURBID IN STORAGE, HEAT TO CLEAR
DENSITY D20/4 1.09 - 1.12
REFRACTIVE INDEX N20/D 1.469 - 1.473
PROTON NMR SPECTRUM CONFORMS TO STRUCTURE
VISCOSITY (ROTATION) 250.0 - 450.0 mPas
VISCOSITY (CONDITIONS) DIN 45 150 s-1, 25 C, NEAT
HLB VALUE 15.7 - 17.7
RECOMMENDED RETEST PERIOD 42 MONTHS