Diethyl carbonate

Diethyl carbonate

Names
Other names carbonic ether; ethyl carbonate; Eufin
Identifiers
CAS Number	105-58-8 Y
3D model (JSmol)	Interactive image
ChemSpider	7478 Y
ECHA InfoCard	100.003.011
PubChem CID	7766
UNII	3UA92692HG N
InChI InChI=1S/C5H10O3/c1-3-7-5(6)8-4-2/h3-4H2,1-2H3 Y Key: OIFBSDVPJOWBCH-UHFFFAOYSA-N Y InChI=1/C5H10O3/c1-3-7-5(6)8-4-2/h3-4H2,1-2H3 Key: OIFBSDVPJOWBCH-UHFFFAOYAX
SMILES O=C(OCC)OCC
Properties
Chemical formula	C5H10O3
Molar mass	118.13 g/mol
Appearance	Clear liquid
Density	0.975 g/cm3
Melting point	−74.3 °C (−101.7 °F; 198.8 K)
Boiling point	126 to 128 °C (259 to 262 °F; 399 to 401 K)
Solubility in water	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EU classification (DSD) (outdated)	Flammable (F)
R-phrases (outdated)	R11
S-phrases (outdated)	S9 S16 S29 S33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).
N  (what is YN ?)
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. 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.

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.