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Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)

average Mn ~1,900

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Pluronic® L-35, PEG-PPG-PEG
CAS Number:
MDL number:
PubChem Substance ID:

vapor density

>1 (vs air)

Quality Level

vapor pressure

<0.3 mmHg ( 20 °C)


viscous liquid

mol wt

average Mn ~1,900


PEG, 50 wt. %

refractive index

n20/D 1.461

surface tension

49 dyn/cm, 25 °C, 0.1 wt. % in H2O


375 cP(25 °C, Brookfield)(lit.)

transition temp

softening point 7 °C
cloud point 73 °C (1 wt. % aqueous solution)


1.06 g/mL at 25 °C


18.0 - 23.0



InChI key


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This Item
mol wt

average Mn ~1,900

mol wt

average Mn ~2,900

mol wt

average Mn ~4,400

mol wt

average Mn ~2,000


375 cP(25 °C, Brookfield)(lit.)


850 cP(25 °C, Brookfield)(lit.)


1,200 cP(25 °C, Brookfield)(lit.)


480 cP(77 °C, Brookfield)(lit.)

transition temp

softening point 7 °C, cloud point 73 °C (1 wt. % aqueous solution)

transition temp

cloud point 58 °C (1 wt. % aqueous solution)

transition temp

cloud point 14 °C (1 wt. % aqueous solution), softening point 5 °C

transition temp

pour point 15 °C, cloud point 69 °C (1 wt% aqueous solution, 1 wt. % aqueous solution)


1.06 g/mL at 25 °C


1.05 g/mL at 25 °C


1.006 g/mL at 25 °C


1.058 g/mL at 25 °C


18.0 - 23.0


12.0 - 18.0


1.0 - 7.0


12.0 - 18.0


Hard and soft surface cleaners, defoamers in coatings and water treatment. Lubricant in metal working, anti-foaming aid and extender for linear and cross-linked polyesters and polyurethanes.

Features and Benefits

Surface active material whose properties are dependent on the hydrophilic (EO)/hydrophobic (PO) ratio. High EO content gives better o/w stabilizers.

Physical form

Terminal primary dihydroxy-functional oligomer.

Legal Information

Pluronic is a registered trademark of BASF

Storage Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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