CAS 9016-00-6 Dimethylpolysiloxane - Materials / Alfa Chemistry

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Dimethylpolysiloxane

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Catalog Number

ACM9016006

CAS Number

9016-00-6

Product Name

Dimethylpolysiloxane

Structure

Category

Reference-Calibration Standards

Synonyms

Polydimethylsiloxane

Description

Dimethylpolysiloxane is a colorless odorless liquid, Floats on water. (USCG, 1999);COLOURLESS OILY LIQUID.

IUPAC Name

dimethyl(oxo)silane

Molecular Weight

~770

Molecular Formula

C2H6OSi

Canonical SMILES

C[Si](=O)C

InChI

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

InChI Key

SEUDSDUUJXTXSV-UHFFFAOYSA-N

Boiling Point

greater than 300 °F at 760 mm Hg (USCG, 1999)

Melting Point

-50 °C

Flash Point

275 to 635 °F (USCG, 1999);>110 °C

Density

0.98 at 68 °F (USCG, 1999);Relative density (water = 1): 0.91-1.0

Solubility

Solubility in water: none

Appearance

liquid

Application

Dimethylpolysiloxane is a versatile, colorless liquid known for its excellent chemical properties and widespread industrial applications. Its primary purpose lies in its role as an antifoaming agent, widely used in various industries to prevent foaming and spattering during processes such as heating oils, and the manufacture of wine, refined sugar, gelatin, and chewing gum. It can be produced in different forms, such as gels, resins, fluids, or elastomers, depending on its cross-linking characteristics. Notably low in toxicity based on animal studies, dimethylpolysiloxane is also a prevalent silicone in medical contexts, being a key component in many prostheses like breast implants. Additionally, in its mixture form as simethicone-combined with silica gel-it serves to alleviate bloating by decreasing gas bubble surface tension in the gastrointestinal tract, effectively used in antacids and remedies for infant colic.

Complexity

Covalently-Bonded Unit Count

EC Number

256-344-9;618-493-1

Exact Mass

74.018791g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0318

Log P

2.6/4.25