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Merck
CN

181846

Poly(dimethylsiloxane)

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

Synonym(s):

Dimethylpolysiloxane

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About This Item

Linear Formula:
[Si(CH3)2O]n
CAS Number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24
MDL number:
eCl@ss:
25140904
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grade

analytical standard

Quality Segment

vapor pressure

5 mmHg ( 20 °C)

mol wt

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

technique(s)

gel permeation chromatography (GPC): suitable

application(s)

cosmetics
food and beverages

format

neat

SMILES string

C[Si](C)=O

InChI

1S/C2H6OSi/c1-4(2)3/h1-2H3

InChI key

SEUDSDUUJXTXSV-UHFFFAOYSA-N

General description

Poly(dimethylsiloxane) [PDMS] is a polymer. It is a stable silicone rubber. It has been used as ion selective membrane for ion-sensitive field-effect transistors, as spring material in accelerometers, elastomer on a tactile sensor and as flexible encapsulation material in decouple sensors.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

Application

It was used in a study performed to understand its molecular weight and molecular weight distribution by off-line coupling of GPC with MALDI mass spectrometer.


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Storage Class

10 - Combustible liquids

WGK

WGK 1

Flash Point (°F)

214.0 °F - closed cup

Flash Point (°C)

101.1 °C - closed cup

PPE (personal protective equipment)

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



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