Speciality Chemicals

Ethyl Methyl Carbonate

  • CAS No.623-53-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity Ethyl Methyl Carbonate designed for lithium-ion battery electrolytes and organic synthesis, offering exceptional stability and conductivity.

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Product Technical Details

Product Overview

Ethyl Methyl Carbonate (EMC) is a critical asymmetric organic carbonate ester widely recognized for its superior performance in energy storage applications. As a key component in modern lithium-ion battery electrolytes, this chemical combines the beneficial properties of both dimethyl carbonate and diethyl carbonate. Our manufacturing process ensures ultra-high purity levels, making it an ideal choice for demanding electrochemical environments where stability and conductivity are paramount.

Produced under strict quality control standards, this solvent supports the efficient transport of lithium ions within battery cells. The unique molecular structure provides a balanced viscosity and dielectric constant, optimizing the overall performance and lifespan of rechargeable battery systems. Beyond energy storage, it serves as a versatile intermediate in organic synthesis and specialty chemical formulations.

Technical Specifications

ParameterSpecification
CAS Number623-53-0
Molecular FormulaC4H8O3
Molecular Weight104.11 g/mol
Purity (GC)≥99.95%
Moisture Content≤0.0100%
Chroma (Pt-Co)≤10 Hazen
Methanol Residue≤0.0100%
Ethanol Residue≤0.0100%
Density1.01 g/cm3
Boiling Point107 °C

Industrial Applications

The primary application of Ethyl Methyl Carbonate lies in the fabrication of electrolytes for lithium-ion batteries. Its asymmetric structure allows for a lower melting point compared to symmetric carbonates, ensuring excellent low-temperature performance for electric vehicles and portable electronics. Manufacturers utilize EMC to enhance the ionic conductivity and cycle life of battery cells.

In addition to energy storage, this compound functions as a specialized solvent in pharmaceutical intermediates and fine chemical synthesis. Its ability to dissolve a wide range of organic compounds makes it valuable for reaction media where specific polarity and volatility profiles are required. The low moisture content is particularly crucial for preventing hydrolysis during sensitive chemical processes.

Key Advantages

  • Ultra-high purity suitable for advanced battery-grade formulations
  • Exceptional electrochemical stability under high voltage conditions
  • Low viscosity improves ion mobility within electrolyte solutions
  • Strict control over moisture and alcohol residues
  • Consistent quality backed by comprehensive Certificate of Analysis

Packaging and Storage

To maintain product integrity, Ethyl Methyl Carbonate is packaged in galvanized iron drums, paint drums, or stainless steel containers. Bulk quantities are available via ISO TANKs with net weights of 5, 10, or 20 tons. Standard drum packaging includes 200kg/200L options. Storage requirements dictate a cool, ventilated, and dry environment away from direct sunlight and ignition sources. Proper handling ensures the chemical retains its specified properties until use.