Methyl ethyl carbonate 
Chinese name: Methyl ethyl carbonate 
CAS: 623-53-0 
Molecular formula: C4H8O3 
Molecular weight: 104.10 
Structural formula: 
Synthesis way: C3H6O3+C2H6O=C4H8O3+CH4O 
Appearance: Colorless transparent liquid 
Melting point: -55°C 
Boiling point: 109°C 
Relative density: 1.00g/cm3 
Refractive index: 1.3697 
Closed flash point: 21.7°C 
Solubility: Unsoluble in water, soluble in ethanol, aether and other organic solvents. 
Oxidation test: 1.Non-oxidizing substance 2.Non-organic peroxide 
Toxicity test: Non-toxic substance 
Corrosion test: Non-corrosive material 
Use: 1. The product is widely used as a lithium-ion battery electrolyte solvent 2. Served as the special spices and intermediate solvent 

Quality index: 
Index 

Battery level(E) 

High purity level(H) 
Technical grade(I) 

Purity(Gas phase chromatography) 

≥ 99.95% ≥ 99.90% ≥ 99.50% 
Carbonate(Gas phase chromatography) 

≥ 99.99% ≥ 99.97% ≥ 99.95% 
Methanol, ethanol(Gas phase chromatography) 

≤ 20ppm ≤ 100ppm ≤ 200ppm 
Water(Karl. Fischer method) 

≤ 20ppm ≤ 100ppm ≤ 200ppm 
Chromaticity(Platinum - Cobalt) 

≤ 5APHA ≤ 10APHA _ 
Gold mixed 

Note: According to customer requests 

Packing:Galvanized bucket, net weight is 200 ± 0.5 KG. 

Storage and transportation:Stored in a cool, dark, dry warehouse, sealed container