Octaphenylsilsesquioxane

Octaphenylsilsesquioxane Basic information
Product Name:Octaphenylsilsesquioxane
Synonyms:OCTAPHENYLSILSESQUIOXANE;OCTAPHENYL-T8-SILSESQUIOXANE;1,3,5,7,9,11,13,15-OCTAPHENYLPENTACYCLO[9.5.1.13,9.15,15.17,13]OCTASILOXANE;Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octaphenyl-;Perphenyloctasilsesquioxane;1,3,5,7,9,11,13,15-OCTAPHENYLPENTACYCLO-OCTASILOXANE;pss-octaphenyl substituted;Octaphenyl-POSS(R), Octaphenylsilsesquioxane, 1,3,5,7,9,11,13,15-Octaphenylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane
CAS:5256-79-1
MF:C48H40O12Si8
MW:1033.51
EINECS:
Product Categories:
Mol File:5256-79-1.mol
Octaphenylsilsesquioxane Structure
Octaphenylsilsesquioxane Chemical Properties
Melting point >350 °C (lit.)
density 1.30 g/cm3
refractive index 1.61
storage temp. Inert atmosphere,Room Temperature
form powder to crystal
Specific Gravity1.35
color White to Almost white
Hydrolytic Sensitivity1: no significant reaction with aqueous systems
InChIKeyKBXJHRABGYYAFC-UHFFFAOYSA-N
CAS DataBase Reference5256-79-1
NIST Chemistry ReferenceSilsesquioxane, phenyl-, cubical octamer(5256-79-1)
EPA Substance Registry SystemPentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octaphenyl- (5256-79-1)
Safety Information
WGK Germany 3
TSCA No
HS Code 29319000
MSDS Information
ProviderLanguage
SigmaAldrich English
Octaphenylsilsesquioxane Usage And Synthesis
UsesOctaphenylsilsequioxane (CAS# 5256-79-1) is a polyhedral oligomeric silsesquioxane (POSS). Octaphenylsilsequioxane has been used in the preparation of flame-retardant and radiation-resistant materials.
Octaphenylsilsesquioxane Preparation Products And Raw materials
Oxalic acid dihydrate Octaphenylsilsesquioxane 2,4,6,8-TETRAMETHYLCYCLOTETRASILOXANE Heptamethyldisilazane Octamethylsilsesquioxane OCTA(AMINOPHENYL)-T8-SILESQUIOXANE Sodium bis(trimethylsilyl)amide Hexamethyldisilazane

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