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107-51-7

107-51-7 structural image
Product Name: Octamethyltrisiloxane
Formula: C8H24O2Si3
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Liquid
Density 0.940 g/cu m @ 25 °C /Silicon fluid with 10 sq mm/s viscosity/
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 10 cu mm/S @ 25 °C /Silicone fluid with 10 mm sq/S viscosity/
Surface Tension 20.0 dyne/cm @ 25 °C /Silicone fluid with 10 mm sq/s viscosity/
Refractive Index Index of refraction 1.399 @ 20 °C/D /Silicone fluid with 10 mm sq/5 viscosity
Kovats Retention Index 1031 1031 1034 1034 1038 1038
Other Experimental Properties Viscosity: 41 cSt at 37.8 °C /Silicone fluid with 10 mm sq/S viscosity/
Chemical Classes Metals -> Metalloid Compounds (Silicon)

SAFETY INFORMATION

Signal word Warning
Pictogram(s)

Flame
Flammables
GHS02
GHS Hazard Statements H226:Flammable liquids
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233:Keep container tightly closed.
P240:Ground/bond container and receiving equipment.
P241:Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242:Use only non-sparking tools.
P243:Take precautionary measures against static discharge.

COMPUTED DESCRIPTORS

Molecular Weight 236.53 g/mol
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 2
Rotatable Bond Count 4
Exact Mass 236.10840961 g/mol
Monoisotopic Mass 236.10840961 g/mol
Topological Polar Surface Area 18.5 Ų
Heavy Atom Count 13
Formal Charge 0
Complexity 149
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Octamethyltrisiloxane is an organosiloxane that is trisiloxane in which all the hydrogens have been replaced by methyl groups.