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438189

Sigma-Aldrich

Poly(ethylene glycol-ran-propylene glycol) monobutyl ether

average Mn ~3,900

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Synonym(s):
Butoxy polyoxyethylene oxypropylene glycol
Linear Formula:
CH3(CH2)3(OCH2CH2)x[OCH2CH(CH3)]yOH
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

viscous liquid

Quality Level

mol wt

average Mn ~3,900

refractive index

n20/D 1.46

viscosity

3,600 cSt(20 °C)(lit.)

bp

>200 °C (lit.)

transition temp

pour point −27 °C

solubility

H2O: soluble at <40 °C

density

1.056 g/mL at 25 °C

SMILES string

OCCO.CCCCO.CC(O)CO

InChI

1S/C4H10O.C3H8O2.C2H6O2/c1-2-3-4-5;1-3(5)2-4;3-1-2-4/h5H,2-4H2,1H3;3-5H,2H2,1H3;3-4H,1-2H2

InChI key

QMNOIORHZMRPLS-UHFFFAOYSA-N

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1 of 4

This Item
407038438111438146
refractive index

n20/D 1.46

refractive index

-

refractive index

n20/D 1.448

refractive index

n20/D 1.45

viscosity

3,600 cSt(20 °C)(lit.)

viscosity

-

viscosity

140 cSt(20 °C)(lit.)

viscosity

1300 cSt(20 °C)(lit.)

transition temp

pour point −27 °C

transition temp

-

transition temp

pour point −40 °C

transition temp

pour point −23 °C

density

1.056 g/mL at 25 °C

density

1.191 g/mL at 25 °C

density

0.989 g/mL at 25 °C

density

1 g/mL at 25 °C

mol wt

average Mn ~3,900

mol wt

average Mn 600

mol wt

average Mn ~1,000

mol wt

average Mn ~2,500

Application

Hydraulic fluids, metal working fluids and lubricants, heat transfer fluids, solder assist fluids, quenchants, lubricants, solvents, plasticizers and foam control agents.

Features and Benefits

Good lubricity under load, noncorrosive to metals. Very low ash content, low pour point, excellent thermal stability.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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