809934

Ethyl methyl carbonate

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

• 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

Properties

• 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

Description

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

Safety Information

• pictograms: GHS02
• signalword: Danger
• hcodes: H225
• pcodes: P210 - P233 - P240 - P241 - P242 - P243
• 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