Octadecyltrimethoxysilane

Post Date:
May 18,2017
Expiry Date:
May 18,2018
Detailed Description:
Cas No. :3069-42-9 Quantity: 1000Kilograms
Price:1 USD Kilograms
Payment Method: West union, T/T
CAS No.: 3069-42-9
MF: C21H46O3Si
Purity: 98%
Appearance: Colorless Liquid
MW: 374.67400
PSA: 27.69000
LogP: 7.12600

Description:
Octadecyltrimethoxysilane is an organosilicon compound, commonly called OTMS. This colourless liquid is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water, irreversibly degrading to a siloxane polymer. It places a C18H39SiO3"cap" on oxide surface. The formation of OTMS monolayers is used for converting hydrophilic surfaces to hydrophobic surfaces, e.g. for use in certain areas of nanotechnology and analytical chemistry.

Properties:
Density: 0.883
Melting point: 13-17degree
Boiling point: 170degree(0.1mmHg)
Flash point: 139degree
Refractive Index: 1.438-1.44
Stability: Stable, Incompatible with strong oxidizing agents. Moisture sensitive.

Safety Info:
Safety Statements: S26-S36
HS Code: 2931900090
WGK Germany:1
Risk Statements: R36/37/38
Hazard Codes: Xi
CAS Registry Number:
3069-42-9
Synonyms:
n-Octadecyltrimethoxysilane;Silane, trimethoxyoctadecyl-;Trimethoxyoctadecylsilane;Octadecyltrimethoxysilane;
Molecular Formula:
C₂₁H₄₆O₃Si
Molecular Weight:
374.6736
Molecular Structure:
Hazard Symbols:
Xi:Irritant;
Risk Codes:
R36/37/38:;
Safety Description:
S26:;
S36:;

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