Trimethylsilyl acetate
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| Names | |
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| IUPAC name
Trimethylsilyl acetate[1]
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| Other names | |
| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value). |
| E number | Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value). |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| CH 3COOSi(CH 3) 3 | |
| Molar mass | 132.234 g·mol−1 |
| Appearance | Colorless liquid[3][4][5] |
| Odor | Mild, sweet[4] |
| Density | 0.882 g/cm3, relative vapor density 4.57 (air = 1)[3][5] |
| Melting point | −32 °C (−26 °F; 241 K)[3] |
| Boiling point | 107.5 °C (225.5 °F; 380.6 K)[3] |
| Soluble[6], reacts[5][6] | |
| Vapor pressure | 47 hPa at 30 °C[3] |
Refractive index (nD)
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1.388[5] |
| Hazards | |
| Main hazards | Highly flammable[3] |
| GHS pictograms |  
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| GHS Signal word | |
| <abbr class="abbr" title="Error in hazard statements">HH225, <abbr class="abbr" title="Error in hazard statements">HH315, <abbr class="abbr" title="Error in hazard statements">HH319 | |
| <abbr class="abbr" title="Error in hazard statements">PP210, <abbr class="abbr" title="Error in hazard statements">PP233, <abbr class="abbr" title="Error in hazard statements">PP240, <abbr class="abbr" title="Error in hazard statements">PP241, <abbr class="abbr" title="Error in hazard statements">PP242, <abbr class="abbr" title="Error in hazard statements">PP243, <abbr class="abbr" title="Error in hazard statements">PP264, <abbr class="abbr" title="Error in hazard statements">PP280, <abbr class="abbr" title="Error in hazard statements">PP303+P361+P353, <abbr class="abbr" title="Error in hazard statements">PP370+P378, <abbr class="abbr" title="Error in hazard statements">PP403+P235, <abbr class="abbr" title="Error in hazard statements">PP501 | |
| Flash point | 19 °C (66 °F; 292 K)[6] |
| Related compounds | |
Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Trimethylsilyl acetate is an organosilicon compound with the chemical formula CH
3COOSi(CH
3)
3. It is a colorless liquid.
Production
Trimethylsilyl acetate can be obtained by the reaction of trimethylsilyl chloride with sodium acetate in a solvent (e.g. hexanes or diethyl ether) in the presence of a phase-transfer catalyst to speed up the reaction.[7]
- (CH
3)
3SiCl + CH
3COO−
Na+
→ CH
3COOSi(CH
3)
3 + NaCl
Safety
Trimethylsilyl acetate is highly flammable. Its vapors can cause flash fire or explosion. Containers filled with this chemical may explode upon heating. This chemical must not be emptied into drains because of danger of explosion. It may cause serious eye and skin irritation. Inhalation of its vapor may cause dizziness, tiredness, headache, nausea and vomiting.[6][8]
References
- ↑ 1.0 1.1 "Silanol, 1,1,1-trimethyl-, 1-acetate". pubchem.ncbi.nlm.nih.gov.
- ↑ "Stability of trimethylsilyl acetate-based plasma polymers towards atmospheric and water environments | Request PDF".
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 https://www.sigmaaldrich.com/GB/en/sds/aldrich/284459?userType=anonymous
- ↑ 4.0 4.1 "CAS 2754-27-0: Trimethylsilyl acetate | CymitQuimica". cymitquimica.com.
- ↑ 5.0 5.1 5.2 5.3 "Trimethylsilyl acetate | 2754-27-0". ChemicalBook.
- ↑ 6.0 6.1 6.2 6.3 https://assets.thermofisher.com/DirectWebViewer/private/document.aspx?prd=ALFAAB22037~~PDF~~MTR~~CGV4~~EN~~2025-09-06%2005:01:56~~Trimethylsilyl%20acetate~~#:~:text=Physical%20and%20Chemical%20Hazards,known%20or%20suspected%20endocrine%20disruptors.
- ↑ https://patents.google.com/patent/CN103755734A/en#:~:text=The%20synthesis%20method%20comprises%20the,a%20finished%20trimethylsilyl%20acetate%20product.
- ↑ https://www.tcichemicals.com/BE/en/sds/A1567_EU_6N.pdf
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