435414

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

average M_n ~1,900

• Synonym(s): Pluronic^® L-35, PEG-PPG-PEG
• CAS Number: 9003-11-6
• MDL number: MFCD00082049
• PubChem Substance ID: 24867231
• NACRES: NA.23

Properties

• vapor density: >1 (vs air)
• Quality Level: 100
• vapor pressure: <0.3 mmHg ( 20 °C)
• form: viscous liquid
• mol wt: average M_n ~1,900
• composition: PEG, 50 wt. %
• refractive index: n20/D 1.461
• surface tension: 49 dyn/cm, 25 °C, 0.1 wt. % in H₂O
• viscosity: 375 cP(25 °C, Brookfield)(lit.)
• transition temp: softening point 7 °C; cloud point 73 °C (1 wt. % aqueous solution)
• density: 1.06 g/mL at 25 °C
• HLB: 18.0 - 23.0
• InChI: 1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
• InChI key: RVGRUAULSDPKGF-UHFFFAOYSA-N

Description

Application

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

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves