Diethyl carbonate

"Ethyl carbonate" redirects here. For the monoethyl carbonate group, see Etabonate.
Diethyl carbonate
Names
Other names
carbonic ether; ethyl carbonate; Eufin[1]
Identifiers
105-58-8 YesY
3D model (Jmol) Interactive image
ChemSpider 7478 YesY
ECHA InfoCard 100.003.011
PubChem 7766
UNII 3UA92692HG YesY
Properties
C5H10O3
Molar mass 118.13 g/mol
Appearance Clear liquid
Density 0.975 g/cm3
Melting point −43 °C (−45 °F; 230 K)
Boiling point 126 to 128 °C (259 to 262 °F; 399 to 401 K)
Insoluble
Hazards
Flammable (F)
R-phrases R11
S-phrases 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).
YesY verify (what is YesYN ?)
Infobox references

Diethyl carbonate 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.

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.

2CH3CH2OH + COCl2 → OC(OCH2CH3)2 + 2HCl

See also

References

  1. "DIETHYL CARBONATE". Retrieved 2010-02-01.


This article is issued from Wikipedia - version of the 6/27/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.