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Sigma-Aldrich

Ethyl methyl carbonate

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

Synonym(s):

Carbonic acid ethyl methyl ester, EMC, Methyl ethyl carbonate

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About This Item

Empirical Formula (Hill Notation):
C4H8O3
CAS Number:
Molecular Weight:
104.10
MDL number:
UNSPSC Code:
12191602
PubChem Substance ID:
NACRES:
NA.23

grade

battery grade

Quality Level

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

pictograms

Flame

signalword

Danger

hcodes

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

71.6 °F

flash_point_c

22 °C


Certificates of Analysis (COA)

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