Sigma-Aldrich Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol). average Mn ~2,000. 250 mL

vapor density

>1 (vs air)

vapor pressure

<0.3 mmHg ( 20 °C)

form

viscous liquid

mol wt

average M_n ~2,000

composition

PEG, 10 wt. %

refractive index

n20/D 1.4531

viscosity

325 cP(25 °C, Brookfield)(lit.)

transition temp

softening point −29 °C
cloud point 15-19 °C (10 wt. % aqueous solution)

density

1.006 g/mL at 25 °C

HLB

1.0 - 7.0.