Diethyl carbonate
Names | |
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Other names
carbonic ether; ethyl carbonate; Eufin[1] | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.003.011 |
PubChem CID |
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UNII | |
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Properties | |
C5H10O3 | |
Molar mass | 118.13 g/mol |
Appearance | Clear liquid |
Density | 0.975 g/cm3 |
Melting point | −74.3[2] °C (−101.7 °F; 198.8 K) |
Boiling point | 126 to 128 °C (259 to 262 °F; 399 to 401 K) |
Insoluble | |
Hazards | |
EU classification (DSD) (outdated) |
Flammable (F) |
R-phrases (outdated) | R11 |
S-phrases (outdated) | S9 S16 S29 S33 |
Flash point | 33 °C (91 °F; 306 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Diethyl carbonate (sometimes abbreviated DEC) is a carbonate ester of carbonic acid and ethanol with the formula OC(OCH2CH3)2. At room temperature (25 °C) diethyl carbonate is a clear liquid with a low flash point.
Diethyl carbonate is used as a solvent such as in erythromycin intramuscular injections. It can be used as a component of electrolytes in lithium batteries. It has been proposed as a fuel additive to support cleaner diesel fuel combustion because its high boiling point might reduce blended fuels' volatility, minimize vapor buildup in warm weather that can block fuel lines.[3]
Production
It can be made by reacting phosgene with ethanol, producing hydrogen chloride as a byproduct. Because chloroform can react with oxygen to form phosgene, chloroform is stabilized for storage by adding 1 part (by mass) of ethanol to 100 parts (by mass) of chloroform, so that any phosgene that forms is converted into diethyl carbonate.
See also
References
- ↑ "DIETHYL CARBONATE". Retrieved 2010-02-01.
- ↑ Ding, Michael (2001). "Liquid/Solid Phase Diagrams of Binary Carbonates for Lithium Batteries". Journal of The Electrochemical Society. 148: A299–A304. doi:10.1149/1.1353568 – via ECS.
- ↑ Walter, K. Scientists Discover Method for Cleaner Fossil Fuel. MR&D Magazine. 09/18/2017 - 3:16pm