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809934

Sigma-Aldrich

Ethyl methyl carbonate

battery grade, 99.9%, acid <10 ppm, H2O <10ppm

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Synonym(s):
Carbonic acid ethyl methyl ester, EMC, Methyl ethyl carbonate
Empirical Formula (Hill Notation):
C4H8O3
CAS Number:
623-53-0
Molecular Weight:
104.10
MDL number:
MFCD00191398
UNSPSC Code:
12191602
PubChem Substance ID:
329769199
NACRES:
NA.23

grade

battery grade

Quality Level

200

description

Acid content: <10 ppm

Assay

99.9%

form

liquid

moisture

<10 ppm

impurities

≤10 ppm H2O
≤10 ppm acid

bp

101 °C

mp

-55 °C

density

1.01 g/cm3

application(s)

battery manufacturing

SMILES string

CCOC(=O)OC

InChI

1S/C4H8O3/c1-3-7-4(5)6-2/h3H2,1-2H3

InChI key

JBTWLSYIZRCDFO-UHFFFAOYSA-N

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General description

Anhydrous ethyl methyl carbonate (EMC) is a clear, colorless liquid with a sweet, ether-like odor. It is a highly polar solvent with a moderate boiling point (101 °C) and relatively low vapor pressure, making it suitable for use in a wide range of chemical reactions and processes. EMC is an excellent solvent for many organic compounds including cellulose, ester, and amides, and it can dissolve a variety of inorganic compounds as well, including many electrolytic salts.

Application

Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.

Legal Information

Product of MU Ionic Solutions Corp

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Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H225

Hazard Classifications

Flam. Liq. 2

WGK

WGK 1

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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Ding M, et al.
Journal of the Electrochemical Society, 148, A1196-A1196 (2001)
Huang S, et al.
Chemical Society Reviews, 44, 3079-3079 (2015)

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