Product: Diethyl Carbonate (DEC, C₅H₁₀O₃)

CAS No.: 105-58-8
Hazard Class: 3 (Flammable Liquid)
UN No.: 2366
Appearance: Colorless transparent liquid

Description: Diethyl carbonate is synthesized via ester exchange reaction between ethanol and dimethyl carbonate or phosgene, serving as a high-performance solvent and electrolyte component. With its high dielectric constant (ε=2.8) and wide liquid range (-43°C to 126°C), it is predominantly used in lithium-ion battery electrolytes (typically blended with EC/EMC), pharmaceutical synthesis (ethylating agent), and as a green alternative to toxic solvents in coatings.