Diethyl carbonate
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Diethyl carbonate (sometimes abbreviated DEC) is an ester of carbonic acid and ethanol with the formula OC(OCH2CH3)2. At room temperature (25 °C) diethyl carbonate is a colorless liquid with a low flash point.
Names | |
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Preferred IUPAC name
Diethyl carbonate | |
Other names
Carbonic ether; Ethyl carbonate, di-; Eufin[1] | |
Identifiers | |
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3D model (JSmol) |
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ChEMBL | |
ChemSpider |
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ECHA InfoCard | 100.003.011 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |
UN number | 2366 |
CompTox Dashboard (EPA) |
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Properties | |
C5H10O3 | |
Molar mass | 118.132 g·mol−1 |
Appearance | Colorless liquid |
Density | 0.975 g/cm3 |
Melting point | −43 °C (−45 °F; 230 K) [2] |
Boiling point | 125.9 °C (258.6 °F; 399.0 K) [2] |
Insoluble | |
Hazards | |
GHS labelling: | |
Warning | |
H226, H315, H319, H335 | |
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501 | |
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).
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Diethyl carbonate is used as a solvent such as in erythromycin intramuscular injections.[3][4][5] 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, minimizing vapor buildup in warm weather that can block fuel lines.[6] As a fuel additive, it can reduce emissions such as volatile organic compounds, CO2, and particulates.[7]