Diethyl carbonate

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Diethyl carbonate
Diethylcarbonat.svg
Names
Other names
carbonic ether; ethyl carbonate; Eufin[1]
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.003.011
UNII
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R-phrases (outdated) R11
S-phrases (outdated) S9 S16 S29 S33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).
N 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[edit]

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.

2 CH3CH2OH + COCl2 → CO3(CH2CH3)2 + 2HCl

See also[edit]

References[edit]

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