Substance profile
Vinyltrimethoxysilane
Vinyltrimethoxysilane is a chemical substance with the molecular formula C5H12O3Si.
01 · Identification
What Vinyltrimethoxysilane is
Vinyltrimethoxysilane is a chemical substance with the molecular formula C5H12O3Si. Its molecular formula is C5H12O3Si and its molecular weight is 148.23 g/mol. It boils at 123 °C, melts at -97 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Vinyltrimethoxysilane identifiers and molecular data
Vinyltrimethoxysilane CAS number and EC number
Vinyltrimethoxysilane molecular formula and molecular weight
Other names for Vinyltrimethoxysilane
- trimethoxyvinylsilane
- trimethoxy(vinyl)silane
03 · GHS classification
Vinyltrimethoxysilane hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Vinyltrimethoxysilane pictograms and signal word
Vinyltrimethoxysilane hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Vinyltrimethoxysilane hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H317 | May cause an allergic skin reaction. |
This page lists only the codes assigned to Vinyltrimethoxysilane. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Vinyltrimethoxysilane
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Vinyltrimethoxysilane issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Vinyltrimethoxysilane precautionary statements
CLP Annex VI assigns 5 precautionary statements to Vinyltrimethoxysilane. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Vinyltrimethoxysilane name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | винилтриметоксисилан винил(триметокси)силан |
| Spanish español | Trimetoxivinilsilano trimetoxi(vinil)silano |
| Czech čeština | trimethoxyvinylsilan trimethoxy(vinyl)silan |
| Danish dansk | trimethoxyvinylsilan trimethoxy(vinyl)silan |
| German Deutsch | Trimethoxyvinylsilan Trimethoxy(vinyl)silan |
| Estonian eesti | Trimetoksüvinüülsilaan trimetoksü(vinüül)silaan |
| Greek ελληνικά | τριμεθοξυβινυλοσιλάνιο τριμεθοξυ(βινυλο)σιλάνιο |
| English English | trimethoxyvinylsilane trimethoxy(vinyl)silane |
| French français | triméthoxyvinylsilane triméthoxy(vinyl)silane |
| Croatian hrvatski | trimetoksivinilsilan trimetoksi(vinil)silan |
| Italian italiano | trimetossivinilsilano trimetossi(vinil)silano |
| Latvian latviešu | trimetoksivinilsilāns trimetoksi(vinil)silāns |
| Lithuanian lietuvių | trimetoksivinilsilanas trimetoksi(vinil)silanas |
| Hungarian magyar | trimetoxivinilszilán trimetoxi(vinil)szilán |
| Maltese Malti | trimetossilvinilsilan trimetossi(vinil)silan |
| Dutch Nederlands | trimethoxyvinylsilaan trimethoxy(vinyl)silaan |
| Polish polski | trimetoksywinylosilan trimetoksy(winylo)silan |
| Portuguese português | trimetoxivinilsilano trimetoxi(vinil)silano |
| Romanian română | trimetoxivinilsilan trimetoxi(vinil)silan |
| Slovak slovenčina | trimetoxyvinylsilán trimetoxy(vinyl)silán |
| Slovenian slovenščina | trimetoksivinilsilan trimetoksi(vinil)silan |
| Finnish suomi | trimetoksivinyylisilaani trimetoksi(vinyyli)silaani |
| Swedish svenska | trimetoxivinylsilan trimetoxi(vinyl)silan |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Vinyltrimethoxysilane GHS label elements
Everything CLP Annex VI fixes for Vinyltrimethoxysilane, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Vinyltrimethoxysilane
- May cause an allergic skin reaction.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- Get medical advice/attention.
- If skin irritation or rash occurs:
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Vinyltrimethoxysilane in the GHS label constructor →
07 · Physical and chemical properties
Vinyltrimethoxysilane properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Vinyltrimethoxysilane boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 123 °C (253.4 °F) | at 760 mmHg | DOE PAC |
| 123 °C (253.4 °F) | at 759.813 mmHg | Pertti |
Vinyltrimethoxysilane melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -97 °C (-142.6 °F) | Pertti |
Vinyltrimethoxysilane density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.13 g/cm³ | at 25 °C | DOE PAC |
| 0.94 g/cm³ | Pertti |
Vinyltrimethoxysilane solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Water Solubility: 1,000,000 mg/L at 20°C (modeled data). | at 20 °C | Pertti |
Vinyltrimethoxysilane vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 8.9257 mmHg | at 20 °C | Pertti |
Vinyltrimethoxysilane flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 25.5 °C (77.9 °F) | Pertti |
Vinyltrimethoxysilane autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 224 °C (435.2 °F) | Pertti |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
08 · Questions
Vinyltrimethoxysilane — frequently asked questions
What is the CAS number of Vinyltrimethoxysilane?
The CAS number of Vinyltrimethoxysilane is 2768-02-7. Its EC number is 220-449-8.
What is the chemical formula of Vinyltrimethoxysilane?
The molecular formula of Vinyltrimethoxysilane is C5H12O3Si and its molecular weight is 148.23 g/mol.
What does a Vinyltrimethoxysilane label have to show?
Under CLP Annex VI the label for Vinyltrimethoxysilane carries the pictogram Exclamation mark and the signal word is Warning.
Is Vinyltrimethoxysilane flammable?
CLP Annex VI assigns Vinyltrimethoxysilane no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it. The flash point reported for it is 25.5 °C (77.9 °F) (Pertti).
Is Vinyltrimethoxysilane a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Vinyltrimethoxysilane. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of Vinyltrimethoxysilane?
The boiling point reported for Vinyltrimethoxysilane is 123 °C (253.4 °F), at 760 mmHg (DOE PAC).
What is the melting point of Vinyltrimethoxysilane?
The melting point reported for Vinyltrimethoxysilane is -97 °C (-142.6 °F) (Pertti).
Nearby
Substances next to Vinyltrimethoxysilane
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