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Octadecyltrimethoxysilane

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Origin: China

Cas No: 3069-42-9

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Quick Details
CAS No.:
3069-42-9
Other Names:
Octadecyltrimethoxysilane/Trimethoxy(octadecyl)silane
MF:
C21H46O3Si
EINECS No.:
221-339-2
Place of Origin:
Shanghai, China
Type:
Syntheses Material Intermediates
Purity:
97% Min
Brand Name:
KY CHEM
Model Number:
3069-42-9
Application:
Coupling agent
Appearance:
Colorless Liquid
Color:
Colorless
Form:
Liquid
Molecular Weight:
374.68
Density:
0.883
M.P.:
13-17°C
B.P.:
170°C(0.1 mmHg)
Refractive Index:
1.438-1.44
Flash Point:
139°C
Sample:
Available
COA/MSDS:
Available
Packaging&Delivery
Packaging Details
100g/500g/1kg/5kg/10kg/25kg/200kg or as your special request.
Port
Shanghai Port
Lead Time:
Within 7 working days upon the receipt of payment

Property

CAS No.: 3069-42-9 Formula: C21H46O3Si Molecular Weight: 374.67400

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 surfaces. 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.

Basic Info

Chemical Name	Octadecyltrimethoxysilane
Synonyms	Silane,trimethoxyoctadecyl; trimethoxyoctadecyl-silan; octadecyl trimethoxy silane; TriMethoxy; Trimethoxy(octadecyl)silane; Octadecyltrimethoxysilan; TRIMETHOXYOCTADECYLSILANE; OctadecyltriMethoxysilane; OctadecyltriMethoxys; Stearyltrimethoxysilane; n-Octodecyltrimethoxysilane; N-OCTADECYLTRIMETHOXYSILANE;
CAS No.	3069-42-9
Molecular Formula	C21H46O3Si
Molecular Weight	374.67400
PSA	27.69000
LogP	7.12600

Properties

Appearance & Physical State	light yellow liquid.
Density	0.883
Boiling Point	170ºC (0.1 mmHg)
Melting Point	13-17ºC
Flash Point	139ºC
Refractive Index	1.438-1.44
Stability	Stable. Incompatible with strong oxidizing agents. Moisture sensitive.