Vinyl trimethoxysilane

Structural formula
General
Surname	Vinyl trimethoxysilane
other names	Trimethoxyvinylsilane; Ethenyltrimethoxysilane; Trimethoxysilylethylene;
Molecular formula	C 5 H 12 O 3 Si
Brief description	light yellow liquid with a fruity odor
External identifiers / databases
EC number	220-449-8
ECHA InfoCard	100.018.591
PubChem	76004
ChemSpider	68503
Wikidata	Q27251076
properties
Molar mass	148.23 g mol −1
Physical state	liquid
density	0.97 g cm −3
Melting point	−97 ° C
boiling point	124 ° C
Vapor pressure	11.9 hPa (20 ° C)
solubility	decomposes in water
Refractive index	1.3920 (20 ° C)
safety instructions
H and P phrases	H: 225-332
	P: 210
Toxicological data	7130 mg kg −1 ( LD 50 , rat , oral ) ; 3260 mg kg −1 ( LD 50 , rabbit , transdermal ) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Vinyltrimethoxysilane is a chemical compound from the group of organosilicon compounds and alkyloxysilanes . The compound is on the list of CoRAP substances .

properties

Vinyltrimethoxysilane is a highly flammable, light yellow liquid with a fruity odor that decomposes in water.

use

Vinyltrimethoxysilane is used as a chemical intermediate in the manufacture of other chemicals or as a monomer in the manufacture of vinyl-functional silicone polymers. The use of vinyltrimethoxysilane in coatings is said to improve the adhesion between organic polymers and mineral surfaces such as pigments, fillers and glass or metal substrates. It is used in decorative water-based coating products and also as a crosslinker and adhesion promoter in commercially available silicone sealants.

safety instructions

The vapors of vinyltrimethoxysilane can form an explosive mixture with air ( flash point 23 ° C, ignition temperature 235 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on vinyltrimethoxysilane in the GESTIS substance database of the IFA , accessed on July 12, 2018(JavaScript required) .
↑ ^a ^b Datasheet Vinyltrimethoxysilane, 98% from AlfaAesar, accessed on July 12, 2018 ( PDF )(JavaScript required) .
↑ Entry on trimethoxyvinylsilane in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on July 23, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Entry on vinyltrimethoxysilane in the GESTIS substance database of the IFA , accessed on July 12, 2018(JavaScript required) .

[Alfa-2] Datasheet Vinyltrimethoxysilane, 98% from AlfaAesar, accessed on July 12, 2018 ( PDF )(JavaScript required) .

[CLP_100.018.591-3] Entry on trimethoxyvinylsilane in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on July 23, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .