CAS 63148-62-9 Dimethylsilicone oil, viscosity 500±30mPa.s

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Dimethylsilicone oil, viscosity 500±30mPa.s

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Catalog Number

ACM63148629-14

CAS Number

63148-62-9

Product Name

Dimethylsilicone oil, viscosity 500±30mPa.s

Structure

Category

Silicone

Description

Liquid

IUPAC Name

dimethyl-bis(trimethylsilyloxy)silane

Molecular Weight

236.53g/mol

Molecular Formula

C8H24O2Si3

Canonical SMILES

C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C

InChI

InChI=1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3

InChI Key

CXQXSVUQTKDNFP-UHFFFAOYSA-N

Boiling Point

153.0 °C

Melting Point

-80.0 °C

Density

0.940 g/cu m @ 25 °C /Silicon fluid with 10 sq mm/s viscosity/

Solubility

1.44e-07 M;Immiscible with water;Immiscible with alcohol;Miscible with chloroform; soluble in chlorinated hydrocarbons, benzene, toluene, xylene, n-hexane, petroleum spirits, ether, amyl acetate; very slightly soluble in isopropyl alcohol; insoluble in methanol, acetone

Application

Dimethylsilicone oil, with a viscosity of 500±30 mPa.s, is a versatile, viscous, colorless liquid used extensively across various industries. Its primary purpose is to serve as a reliable heat transfer medium within chemical and petrochemical processes, ensuring efficient thermal management. Additionally, it acts as a dielectric coolant, providing insulation in electrical applications. Its properties also make it suitable as a protective coating for building materials, offering a durable barrier against environmental damage. In the cosmetic industry, it is valued as an additive that enhances the texture and application of products. Dimethylsilicone oil's unique structure, composed of alternating silicon and oxygen atoms with organic radicals attached, ensures its compatibility with a variety of solvents, including aliphatic and chlorinated hydrocarbons, THF, and toluene, further broadening its range of uses.

Color/Form

Colorless oil;Clear colorless liquids

Complexity

149

Covalently-Bonded Unit Count

EC Number

203-497-4;613-156-5;618-433-4

Exact Mass

236.10841g/mol

Formal Charge

Heavy Atom Count

Log P

6.6 (LogP)

MeSH Entry Terms

dimethicone;dimethyl polysiloxane;dimeticone

Monoisotopic Mass

236.10841g/mol

Other Experimental

Silcone oil consisting of dimethylsiloxane polymers range in viscosities from 0.65-1,000,000 centistokes at room temp;Low surface tension, inert /Silicones/;Index of refraction: 1.4013 to 1.4053 at 35 °C; viscosity at 25 °C: 350 cSt; density: 0.965-0.973 /Dimethicone 350/;Viscosity: 41 cSt at 37.8 °C /Silicone fluid with 10 mm sq/S viscosity/;DIMETHYLPOLYSILOXANES ARE PRACTICALLY INERT POLYMERS

Refractive Index

Index of refraction 1.399 @ 20 °C/D /Silicone fluid with 10 mm sq/5 viscosity

Rotatable Bond Count

Stability

Stable to heat and ... resistant to most chemical substances, although they are affected by strong acids.

UNII

9G1ZW13R0G

Vapor Density

Pour point -73 °C; Electric Strength 1.4 KV/um; Electric Constant 2.60; Thermal conductivity at 65 °C = 1.3 W/(m.k). /Silicone fluid with 10 mm sq/5 viscosity/

Vapor Pressure

3.34 mmHg

Viscosity

Viscosity increases with degree of polymerization;10 cu mm/S @ 25 °C /Silicone fluid with 10 mm sq/S viscosity/

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