Vinyl trimethoxysilane
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Vinyl trimethoxysilane | ||||||||||||||||||
other names |
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Molecular formula | C 5 H 12 O 3 Si | ||||||||||||||||||
Brief description |
light yellow liquid with a fruity odor |
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properties | |||||||||||||||||||
Molar mass | 148.23 g mol −1 | ||||||||||||||||||
Physical state |
liquid |
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density |
0.97 g cm −3 |
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Melting point |
−97 ° C |
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boiling point |
124 ° C |
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Vapor pressure |
11.9 hPa (20 ° C) |
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solubility |
decomposes in water |
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Refractive index |
1.3920 (20 ° C) |
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safety instructions | |||||||||||||||||||
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Toxicological data | |||||||||||||||||||
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 .