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Zhangjiagang Guotai Huarong New Chemical Materials Co., Ltd.
Zhangjiagang Guotai Huarong New Chemical Materials Co., Ltd.
22 YRS
Jiangsu, China
Main Products:
N-Octyltriethoxysilane / Lithium ion Battery Electrolyte / Trimethoxysilane / Triethoxysilane / Tetramethyl Orthosilicate / Tetraethyl Orthosilicate / Methyltrimethoxysilane / Methyltriethoxysilane
Jiangsu, China
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Tetramethyl Orthosilicate / CAS 681-84-5
OVERVIEW
Packaging
200 KG/Plastic Drum
Lead Time
14-30 days
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DESCRIPTION
Typical Properties
Summary
Tetramethyl orthosilicate is the chemical compound with the formula Si(OCH3)4. This molecule consists of four methyl groups attached to the hypothetical anion SiO44−. The basic properties are similar to the more popular tetraethyl orthosilicate, which is usually preferred because the product of hydrolysis, ethanol, is less toxic than methanol.
Tetramethyl orthosilicate hydrolyzes to SiO2:
Si(OCH3)4 + 2 H2O → SiO2 + 4 CH3OH
In organic synthesis, Si(OCH3)4 has been used to convert ketones and aldehydes to the corresponding ketals and acetals, respectively.
CAS No.
681-84-5
Formula
C4H12O4Si
Molecular Mass
152.22100
Exact Mass
152.05000
PSA
36.92000
Logp
0.00760
IUPAC
tetramethyl silicate
SMILES
CO[Si](OC)(OC)OC
Attribute classification
Category
Coating(Resin) > Fireproof (Waterproof) Coating
Coating(Resin) > Electrical Insulating Coating
Auxiliary > Adhesive
Coating(Resin) > Electrical Insulating Coating
Auxiliary > Adhesive
Chemical and Physical Properties
Melting Point
−4 °C(lit.)
Density
1.023 g/mL at 25 °C(lit.)
Boiling Point
121-122 °C(lit.)
Flash Point
84 °F
Appearance
colorless liquid
Export information
HS Code
2920900090
Export Rebate
13%
UN No.
2606 6.1/PG 1
DG-Class
6.1
Risk Code
R10; R26; R37/38; R41
Safety Label
T+
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