Chloro(trimethoxy)silane

Basic Information

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CAS Number

4668-00-2

Molecular Formula

C3H9ClO3Si

Molecular Weight

156.64 g/mol

Chemical Classification

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

Boiling Point

112°C

Flash Point

2.2±10.8 ºC,

SMILES

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CO[Si](OC)(OC)Cl

InChI

InChI=1S/C3H9ClO3Si/c1-5-8(4,6-2)7-3/h1-3H3

InChIKey

CBVJWBYNOWIOFJ-UHFFFAOYSA-N

LogP

0.5999999999999999

Topological Polar Surface Area

27.69 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

57.3

Safety Information

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Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

H290 May be corrosive to metals
Corrosive to Metals

H314 Causes severe skin burns and eye damage
Skin corrosion/irritation

Hazard Class

Class 3.1 Class 3.1

Synonyms & References

English

Silane,chlorotrimethoxy-
Trimethoxychlorosilane
Chloro(trimethoxy)silane
chlorotrimethoxysilane
Silane,chlorotrimethoxy
trimethoxysilyl chloride
Silane, chlorotrimethoxy-
Chloro(trimethoxy)silane #
Silane, chloro-tris(methoxy)-
CBVJWBYNOWIOFJ-UHFFFAOYSA-N
TRIMETHOXYCHLOROSILANEDISC 05/06/04

MDL Number

MFCD00191934

FAQ

What are the physical and chemical properties of Chloro(trimethoxy)silane (CAS: 4668-00-2)?

Chloro(trimethoxy)silane (CAS: 4668-00-2) is a colorless to light yellow liquid with a molecular weight of approximately 184.25 g/mol. It has a boiling point of 128-129°C and a density of around 0.92 g/cm³. It is slightly soluble in water but miscible with common organic solvents. The compound is known for its reactivity, particularly in silicon-based chemistry, and can undergo hydrolysis and condensation reactions.

How is Chloro(trimethoxy)silane (CAS: 4668-00-2) typically synthesized?

Chloro(trimethoxy)silane is typically synthesized by reacting dimethoxydimethylsilane with hydrochloric acid. This process is conducted under mild conditions, and the reaction is exothermic, requiring careful temperature control. The product is isolated through distillation, and the yield is generally high, around 90%. Catalysts are not typically required in this synthesis.

What industries use Chloro(trimethoxy)silane (CAS: 4668-00-2)?

Chloro(trimethoxy)silane (CAS: 4668-00-2) is widely used in the semiconductor industry for the production of organosilicon compounds and as a precursor in silicon nitride films. It is also utilized in the pharmaceutical, polymer, and sensor industries for the synthesis of functionalized silanes and as crosslinking agents.

What precautions should be taken when handling Chloro(trimethoxy)silane (CAS: 4668-00-2)?

When handling Chloro(trimethoxy)silane (CAS: 4668-00-2), proper personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. This compound should be used in a well-ventilated area or a fume hood to avoid inhalation. Spills should be cleaned up with water and appropriate absorbents. Workers should be familiar with the Safety Data Sheet (SDS) and emergency procedures. Handling should be conducted in a controlled environment to prevent exposure and ensure safety.