Methyltriethoxysilane CAS:4253-34-3
Chemical Name:Triacetoxy(methyl)silane; Methylsilanetriyl triacetate


CAS No.:4253-34-3


Product Categories:Organic Chemistry


Molecular Formula: C₇H₁₂O₆Si


Formula Weight:220.2521


Appearance:Colorless transparent liquid


Packaging Method:25KG/200L Plastic Drum


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


Sample:Available


Methyltriethoxysilane CAS:4253-34-3

Product Description Of

Methyltriethoxysilane CAS:4253-34-3
Boiling point: 94–95°C / 9 mmHg (lit.)

Density: 1.20 g/mL at 20°C (lit.)

Vapor pressure: 0.053–26 Pa at 20–25°C

Refractive index: 1.52–1.522

Flash point: 185°F

Solubility: Soluble in methanol

Form: Solid

Specific gravity: 1.175

Color: White or colorless to almost white / almost colorless

Odor: Acrid odor

Water solubility: 1000 g/L at 20°C

Hydrolysis sensitivity: Reacts slowly with moisture/water

Appearance: Colorless or pale yellow transparent liquid; white crystal at low temperature


Chemical Properties Of

Methyltriethoxysilane CAS:4253-34-3
chemical nameMethyltriethoxysilane
abbreviationMTAS
colourcolorless clear liquid
Purity (%)99%
Density (25℃)1.03-1.10
Refractive index (25℃)1.4100-1.4200



Safety Information Of

Methyltriethoxysilane CAS:4253-34-3
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

Methyltriethoxysilane CAS:4253-34-3
  • Building Hydrophobic Waterproof Agent
    Used for penetrating waterproof and anti-fouling treatment of concrete, stone, brick, tile and exterior wall substrate. It forms breathable hydrophobic layer without changing the original appearance of materials.
  • Raw Material for Silicone Resin
    Key monomer for synthesizing methyl silicone resin, high-temperature resistant resin and weather-resistant silicone resin. Improve hardness, heat resistance and weatherability of coating film.
  • Sol-Gel Raw Material
    Used to prepare nano silica, silica sol and inorganic-organic hybrid coating materials via sol-gel process.
  • Crosslinking Agent for Silicone Rubber
    Used as crosslinking agent and raw material for room temperature vulcanized silicone rubber and neutral silicone sealant.
  • Inorganic Filler Surface Modification
    Surface treatment for silica, talc, calcium carbonate and other powders to improve hydrophobicity and compatibility with organic polymers.
  • Synthetic Intermediate
    Used as intermediate for manufacturing polysiloxane, silane coupling agents and other fine organosilicon chemicals.


Packaging Method Of

Methyltriethoxysilane CAS:4253-34-3
  • 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