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2768-02-7

Supplier Related Products Identification Chemical Properties Safety Data Raw materials And Preparation Products Material Safety Data Sheet(MSDS) Questions And Answer Hazard Information Spectrum Detail Well-known Reagent Company Product Information

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Identification

Name
Vinyltrimethoxysilane
CAS
2768-02-7
Synonyms
DOW CORNING(R) PRODUCT Q9-6300
ETHENYLTRIMETHOXYSILAN
(TRIMETHOXYSILYL)ETHYLENE
TRIMETHOXYVINYLSILANE
VINYLTRIMETHOXYSILANE
VTMO
(trimethoxysilyl)ethene
a171
a171(silanederivative)
CV-4917
Dynasylan VTMO
ethenyltrimethoxysilane
ethenyltrimethoxy-Silane
kbm1003
Silane, ethenyltrimethoxy-
Silane, trimethoxyvinyl-
Silane,ethenyltrimethoxy-
sz6300
trimethoxyvinyl-silan
Union Carbide A-171
EINECS(EC#)
220-449-8
Molecular Formula
C5H12O3Si
MDL Number
MFCD00008605
Molecular Weight
148.23
MOL File
2768-02-7.mol

Chemical Properties

Appearance
Colorless transparent liquid
Melting point 
<-70°C
mp 
<-70°C
Boiling point 
123 °C (lit.)
bp 
123 °C(lit.)

density 
0.971 g/mL at 25 °C(lit.)

vapor pressure 
88 hPa (55 °C)
refractive index 
n20/D 1.392(lit.)

Fp 
73 °F

storage temp. 
2-8°C

form 
liquid
Specific Gravity
0.970
explosive limit
1.1%(V)
Water Solubility 
slightly soluble
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
1099136
InChIKey
NKSJNEHGWDZZQF-UHFFFAOYSA-N
CAS DataBase Reference
2768-02-7(CAS DataBase Reference)
NIST Chemistry Reference
Vinyltrimethoxysilane(2768-02-7)
EPA Substance Registry System
2768-02-7(EPA Substance)

Safety Data

Hazard Codes 
Xi
Risk Statements 
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S37/39:Wear suitable gloves and eye/face protection .
S16:Keep away from sources of ignition-No smoking .
RIDADR 
UN 1993 3/PG 2

WGK Germany 
1

RTECS 
VV6770000


10-21
Autoignition Temperature
235 °C
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29310095
Toxicity
LD50 orally in Rabbit: 7120 mg/kg LD50 dermal Rabbit 3259 mg/kg

Raw materials And Preparation Products

Raw materials
Methanol

Material Safety Data Sheet(MSDS)

Questions And Answer

Description
Vinyltrimethoxysilane, is used as a polymer modifier via grafting reactions. The resulting pendant trimethoxysilyl groups can function as moisture-activated crosslinking sites. The Silane grafted polymer is processed as a thermoplastic and crosslinking occurs after fabrication of the finished article upon exposure to moisture.

Vinyltrimethoxysilane is mainly applied in these aspects:
  1. In the preparation of moisture-curing polymers, e.g. polyethylene. Silane crosslinked polyethylene is widely used as cable isolation, and sheathing mainly in low voltage applications as well as for hot water/sanitary pipes and underfloor heating.
  2. As a co-monomer for the preparation of different polymers such as polyethylene or acrylics. Those polymers show an improved adhesion to inorganic surfaces and they can also be crosslinked with moisture.
  3. As an efficient adhesion promoter for various mineral-filled polymers, improving mechanical and electrical properties especially after exposure to moisture.
  4. Improving the compatibility of fillers with polymers, leading to a better dispersibility, reduced melt viscosity and easier processing of filled plastics.
  5. Pre-treating of glass, metals, or ceramic surfaces, improve the adhesion of coatings on these surfaces and corrosion resistance.
  6. As moisture scavenger, it reacts rapidly with water. This effect is used widely in sealants.

Hazard Information

Chemical Properties
Colorless transparent liquid
Uses
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.

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.

Spectrum Detail

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