Ethyl Methyl Carbonate
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Product Description
Ethyl Methyl Carbonate
Chemical Name: Ethyl Methyl Carbonate; CAS 623-53-0; EMC
Cas No.: 623-53-0
EINECS No.: 613-014-2
Chemical Formula: C4H8O3
Molecular Weight: 104.104
Melting point: -14.5°C
Boiling point: 107.5 at 760 mmHg
Density: 1.0±0.1 g/cm3 at 20°C
Molecular Structure:
Description
Ethyl methyl carbonate (EMC) is an asymmetric aliphatic organic carbonate. It is a colorless transparent liquid widely used as an excellent solvent for lithium-ion battery electrolytes. EMC increases the solubility of lithium ions improving the capacity density and power of batteries. This compound has excellent thermal conductivity and low electrical resistance, extending the working temperature range of electrolytes, improving lithium batteries' safety, and prolonging their service life. EMC is usually obtained by metal oxide-catalyzed transesterification over dimethyl carbonate and diethyl carbonate. High percentage yields are obtained if the reaction is carried out in liquid or vapor phase.
Ethyl Methyl Carbonate Standard
Appearance: Colourless Liquid
Purity % ≥: 99
Acidity mgKOH/g ≤: 0.15
Density (20ºC)g/cm3: 1.0±0.1
Flash Point ºC: 26.7±7.8
Surface tension dyne/cm: 25.9
Vapor Pressure hPa at 25ºC: 43
Refractive Index (20ºC): 1.378
N-Octanol/Water Coefficient: 0.972
Application
1. This product is mainly used as electrolyte solvent for lithium ion batteries, and the grade requires electronic grade or above;
2. This product has both methyl and ethyl, and has the characteristics of dimethyl carbonate and diethyl carbonate. It can be used as a solvent for special spices and intermediates.
3. EMC is majorly utilized as a co-solvent in the nonaqueous electrolyte. It enhances the energy density and discharge capacity of lithium-ion batteries.
Storge & Handling
Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat source. The warehouse temperature should not exceed 30 ℃. Keep container sealed. It should be stored separately from oxidizing agents, reducing agents, acids and edible chemicals, and avoid mixed storage. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area shall be equipped with leakage emergency treatment equipment and suitable storage materials.
Packing
200 KG/Iron Drum, ISOTANK.