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Octamethyltrisiloxane

ALDRICH/235709 - 98%

Synonym: 1,1,1,3,3,5,5,5-Octamethyltrisiloxane; Dimethylbis(trimethylsiloxy)silane; Pentamethyl(trimethylsiloxy)disiloxane; Pentamethyl(trimethylsilyloxy)disiloxane

CAS Number: 107-51-7
Empirical Formula (Hill Notation): C8H24O2Si3
Molecular Weight: 236.53
EC Number: 203-497-4
MDL Number: MFCD00008264
Linear Formula: [(CH3)3SiO]2Si(CH3)2
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-235709-5ML 5 mL
$45.80
1/EA
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45-235709-100ML 100 mL
$261.00
1/EA
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This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 235709-100ML.

 

assay 98%
bp 153 °C (lit.)
density 0.82 g/mL at 25 °C (lit.)
form liquid
InChI 1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3
InChI key CXQXSVUQTKDNFP-UHFFFAOYSA-N
mp −82 °C (lit.)
Quality Level 100 
refractive index n20/D 1.384 (lit.)
SMILES string C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
vapor density >1 (vs air)
Application: Octamethyltrisiloxane is used as a solvent for good dispersion of styrene and polydimethylsiloxane (PDMS), which are used in the fabrication of perovskite barium titanate inverse opal films.
General description: Octamethyltrisiloxane, commonly referred to as octamethylcyclotetrasiloxane, falls under the category of siloxanes. Its versatile applications include serving as a solvent, coupling agent, and surface tension modifier in various industries. Furthermore, it plays a significant role in the production of adhesives, sealants, and lubricants.
Packaging: 5, 100 mL in glass bottle
Symbol GHS02  GHS02
Signal word Warning
Hazard statements H226
Precautionary statements P210 - P233 - P240 - P241 - P242 - P243
Risk Statements 10
Safety Statements 23-24/25
RIDADR UN 1993C 3 / PGIII
WGK Germany WGK 3
Flash Point(F) 84.2 °F - (External MSDS)
Flash Point(C) 29 °C - (External MSDS)
Purity 98%
bp 153 °C (lit.)
mp −82 °C (lit.)
Density 0.82 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.384 (lit.)
UNSPSC 12352103

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