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Methyltriethoxysilane(CAS#2031-67-6)

Chemical Property:

Molecular Formula C7H18O3Si
Molar Mass 178.3
Density 0.895g/mLat 25°C(lit.)
Boling Point 141-143°C(lit.)
Flash Point 75°F
Water Solubility INSOLUBLE
Vapor Presure 11 mm Hg ( 20 °C)
Vapor Density >1 (vs air)
Appearance liquid
Specific Gravity 0.896
Color colorless
BRN 1742453
Storage Condition Store at
Stability Stability Moisture-sensitive. Flammable – note low flash point. Incompatible with acids, oxidizing agents, moisture, water.
Sensitive Moisture Sensitive
Refractive Index n20/D 1.383(lit.)
Physical and Chemical Properties Character: colorless liquid.
boiling point 143 ℃
relative density 0.8810-0.8990
refractive index 1.3835
soluble in ethanol, benzene and gasoline.
Use Used in rubber, medicine, used as silicone polymer raw materials. This product is an important raw material for the production of silicone resin, benzyl silicone oil and waterproof agent. At the same time, it is easy to hydrolyze and can form alkali metal silicon alkoxide with alkali metal hydroxide. And can be used for the crosslinking agent of room temperature vulcanized silicone rubber.

Product Detail

Product Tags

Risk Codes 10 – Flammable
Safety Description 16 – Keep away from sources of ignition.
UN IDs UN 1993 3/PG 3
WGK Germany 3
RTECS VV4640000
FLUKA BRAND F CODES 10-21
TSCA Yes
HS Code 29310095
Hazard Class 3
Packing Group III
Toxicity LD50 orally in Rabbit: 15700 mg/kg

 

Introduction

Methyltriethoxysilane. The following is an introduction to the properties, uses, preparation methods, and safety information of this compound:Quality:1. Appearance: colorless or light yellow transparent liquid;3. Density: about 0.852 g/mL;6. Flash Point: about 31°C;7. Solubility: soluble in organic solvents such as methanol, ethanol and ether;8. Stability: It can be stable at room temperature, but it should be kept away from high temperature and ignition sources.Use:1. Methyltriethoxysilane is a silane compound, which is commonly used as a crosslinker in the fields of silicone rubber, ink, coating and ceramics in industry;2. It can also be used as an intermediate and catalyst in the synthesis and self-assembly of silicones;3. It has good surface activity and hydrophilicity, and methyltriethoxysilane is also used as a functional modifier for certain surface treatment agents, such as glass coatings and nanomaterials.Method:Methyltriethoxysilane can be obtained by adding a dose of sillane (CH3SiH3) with ethanol to a reaction kettle in the presence of triethyl orthosilicate (CH3OC2H5) and hydrolysis reaction at an appropriate temperature.Safety Information:1. Methyltriethoxysilane can cause irritation to the eyes and skin, and protective measures should be taken when using it;2. Methyltriethoxysilane in the form of gases, aerosols and fumes may cause irritation to the respiratory tract and should be operated in a well-ventilated environment;3. Avoid contact with oxidants, acids and alkalis to prevent dangerous reactions;4. When using or storing, high temperature and ignition sources should be avoided to avoid fire or explosion;5. Personal protective equipment must be worn during operation, including chemical gloves, goggles, and protective clothing.


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