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Methyltriethoxysilane

Basic information Description Safety Related Supplier

Methyltriethoxysilane Basic information

Product Name:
Methyltriethoxysilane
CAS:
2031-67-6
MF:
C7H18O3Si
MW:
178.3
EINECS:
217-983-9
Mol File:
2031-67-6.mol
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Methyltriethoxysilane Chemical Properties

Melting point:
<-40°C
Boiling point:
141-143 °C(lit.)
Density 
0.895 g/mL at 25 °C(lit.)
vapor density 
>1 (vs air)
vapor pressure 
11 mm Hg ( 20 °C)
refractive index 
n20/D 1.383(lit.)
Flash point:
75 °F
storage temp. 
Flammables area
form 
liquid
color 
colorless
Specific Gravity
0.896
Water Solubility 
INSOLUBLE
Sensitive 
Moisture Sensitive
BRN 
1742453
Stability:
Stability Moisture-sensitive. Flammable - note low flash point. Incompatible with acids, oxidizing agents, moisture, water.
InChIKey
CPUDPFPXCZDNGI-UHFFFAOYSA-N
CAS DataBase Reference
2031-67-6(CAS DataBase Reference)
NIST Chemistry Reference
Silane, triethoxymethyl-(2031-67-6)
EPA Substance Registry System
Triethoxymethylsilane (2031-67-6)
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Safety Information

Risk Statements 
10
Safety Statements 
16
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
RTECS 
VV4640000
10-21
Autoignition Temperature
220 °C
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29310095
Toxicity
LD50 orally in Rabbit: 15700 mg/kg

MSDS

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Methyltriethoxysilane Usage And Synthesis

Description

Methyltriethoxysilane is an alkylalkoxysilane. It is a clear, colorless liquid with an odor characteristic of alcohols. It hydrolyzes slowly in the presence of moisture to form reactive silanols. These react further to produce oligosiloxanes and then polysiloxanes.
As a Filler Modifier, Methyltrimethoxysilane is used mainly to render a wide range of surfaces and materials water repellent (e.g. mineral fillers, pigments, glass, cardboard). It may be used pure or in solution to treat fillers, using suitable mixing equipment. It may be necessary to first pre-treat the substrate with water and/or a catalyst. It is also used in the production of silicone resins and condensation-curing silicone rubber, used as an important component in sol-gel systems.
As one of the most common Alkoxy Crosslinkers, Methyltrimethoxysilane has high reactivity that precedes by nucleophilic substitution usually in the presence of acid or base catalysts.

Chemical Properties

Colorless clear liquid

Methyltriethoxysilane Preparation Products And Raw materials

Raw materials

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MethyltriethoxysilaneSupplierMore

HUANSHAN KBR CHEMICAL CO., LTD Gold
Tel:
0559-2335676-658
Email:
johnxu@kbrchem.com;
Qufu Chenguang Chemical Co., Ltd Gold
Tel:
0537-4409155
Email:
cg@cnchenguangchem.com
Hubei shengdali Chemical Co., Ltd Gold
Tel:
027-83629626-
Email:
1541018161@qq.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
Basic information Description Safety Related Supplier