Methyltrimethoxysilane
Chemical Name:Methyltrimethoxysilane


CAS No.:1185-55-3


Product Categories:Organic Chemistry


Molecular Formula:C₄H₁₂O₃Si


Formula Weight:136.2218


Appearance:Colorless transparent liquid


Packaging Method:25KG/200L Plastic Drum


Type Of Transportation:By Air/By Sea/By Train/By Express


Sample:Available


Methyltrimethoxysilane

Product Description Of

Methyltrimethoxysilane
  • Appearance: Colorless transparent volatile liquid
  • Density (25°C): 0.950–0.960 g/cm³
  • Refractive Index (25°C): 1.368–1.372
  • Boiling Point: 101–102 °C
  • Flash Point: 12 °C
  • Purity: ≥98.0%
  • Solubility: Miscible with alcohols, toluene, xylene and most organic solvents; easily hydrolyzed in humid air to produce methanol and silanol.

Chemical Characteristics

Contains one non-hydrolyzable methyl group and three hydrolyzable methoxy groups. It has fast hydrolysis and condensation reactivity. It can form dense hydrophobic Si-O-Si network structure after curing, featuring low surface energy, excellent water repellency and weather resistance.


Chemical Properties Of

Methyltrimethoxysilane
chemical nameMethyltrimethoxysilane
abbreviation
colourcolorless clear liquid
Purity (%)99%
Density (25℃)1.03-1.10
Refractive index (25℃)1.4100-1.4200



Safety Information Of

Methyltrimethoxysilane
dangerous markT+
Hazard Category code21/22-26-34-42
safety instructions23-26-28-36/37/39-45
Dangerous goods transportation numberUN 3390 6.1/PG 1
WGK Germany3
RTECS
VV6691000



Product Application Of

Methyltrimethoxysilane

Building Hydrophobic Treatment

Used as penetrating waterproof agent for concrete, stone, brick and exterior wall materials; forms breathable hydrophobic film without changing substrate appearance.

Silicone Resin Raw Material

Key monomer for synthesizing methyl silicone resin, high-temperature resistant coatings and weather-resistant inorganic coatings.

Sol-Gel Precursor

Raw material for preparing nano silica, silica sol and organic-inorganic hybrid materials.

Crosslinking Agent for Silicone Rubber

Used as crosslinker and raw material for room temperature vulcanized silicone rubber and neutral silicone sealant.

Inorganic Filler Modification

Surface treatment agent for silica, calcium carbonate, talc and mica; improves hydrophobicity and dispersion in plastics, rubber and coatings.

Chemical Intermediate

Used for synthesis of polysiloxane, silane coupling agents and other fine organosilicon products.


Packaging Method Of

Methyltrimethoxysilane
  • Galvanized-iron-drum
  • Galvanized-iron-drum-2
  • Galvanized-iron-drum-3
  • Galvanized-iron-drum-4

Factory Show

  • Galvanized-iron-drum-4
  • 34
  • 3m-4
  • 2-4