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DMPS1M

Dimethylpolysiloxane

viscosity 1,000 cSt (25 °C)(lit.)

Synonym(s):

Polydimethylsiloxane

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About This Item

CAS Number:
63148-62-9
MDL number:
MFCD00025691
UNSPSC Code:
12352200
PubChem Substance ID:
24894357
NACRES:
NA.25
Form:
liquid
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form

liquid

Quality Segment

100

mol wt

~28,000

viscosity

1,000 cSt(25 °C)(lit.)

SMILES string

CO[Si](C)(C)OC

InChI

1S/C4H12O2Si/c1-5-7(3,4)6-2/h1-4H3

InChI key

JJQZDUKDJDQPMQ-UHFFFAOYSA-N

Application

Clear, colorless fluid polymer useful as a stationary phase in gas chromatography and as an anti-foaming agent.
Dimethylpolysiloxane is used in protein chromatography and affininty chromatography. Dimethylpolysiloxane was used to determine that postprandial inflammatory response after ingestion of heated oils in obese persons is reduced by the presence of phenol compounds.

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This Item
81153181846378399
Dimethylpolysiloxane viscosity 1,000 cSt (25 °C)(lit.)

Sigma-Aldrich

DMPS1M

Dimethylpolysiloxane

Poly(dimethylsiloxane) analytical standard, suitable for gel permeation chromatography (GPC), 311

Supelco

81153

Poly(dimethylsiloxane)

Poly(dimethylsiloxane) analytical standard, average Mw 95,000 (Typical), average Mn 50,000 (Typical)

Supelco

181846

Poly(dimethylsiloxane)

Silicone oil viscosity 1,000 cSt (25 °C)

Sigma-Aldrich

378399

Silicone oil

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

200

form

liquid

form

-

form

-

form

viscous liquid

viscosity

1,000 cSt(25 °C)(lit.)

viscosity

-

viscosity

-

viscosity

1,000 cSt(25 °C)

mol wt

~28,000

mol wt

Mn ~311, Mp ~311, Mw ~311

mol wt

average Mn 50,000 (Typical), average Mw 95,000 (Typical)

mol wt

-

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

600.8 °F - closed cup

flash_point_c

316.00 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

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Questions

  1. What is the molecular weight of this polymer? is it soluble in toluene or THF? Thanks

    1 answer

    1. The molecular weight of this polymer is ~28,000, as mentioned in the "Properties" section of the product detail page. This material is not soluble in toluene or tetrahydrofuran, however a study found this material to be soluble in chloroform, ether, and xylene.

      To review the study please see this journal article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3146108/

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