440221

Vinyltrimethoxysilane

97%

• Synonym(s): (Trimethoxysilyl)ethylene, Ethenyltrimethoxysilane, Trimethoxy(vinyl)silane
• Linear Formula: H₂C=CHSi(OCH₃)₃
• CAS Number: 2768-02-7
• Molecular Weight: 148.23
• Beilstein: 1099136
• EC Number: 220-449-8
• MDL number: MFCD00008605
• UNSPSC Code: 12352103
• PubChem Substance ID: 24867578
• NACRES: NA.23

Properties

• Assay: 97%
• form: liquid
• refractive index: n20/D 1.392 (lit.)
• bp: 123 °C (lit.)
• density: 0.968 g/mL at 25 °C (lit.)
• SMILES string: CO[Si](OC)(OC)C=C
• InChI: 1S/C5H12O3Si/c1-5-9(6-2,7-3)8-4/h5H,1H2,2-4H3
• InChI key: NKSJNEHGWDZZQF-UHFFFAOYSA-N

Description

General description

Vinyltrimethoxysilane (VTMS) is a silane coupling agent with silicon and hydroxyl groups that can be used to enhance the wettability and improve the superhydrophobic characteristics of different composites.

Application

VTMS may be used to provide superhydrophobicity to different materials like TiO₂, talc, kaolin, magnesium oxide nanoparticles, ammonium phosphate, and PEDOT. It modifies the surface by capping the material and creates a protective layer that is water resistant and can be used in major coating industries.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H317,H332
• Precautionary Statements: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Inhalation - Flam. Liq. 2 - Skin Sens. 1B
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 71.6 °F - closed cup
• Flash Point(C): 22 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves