Diethyl Carbonate (DEC) CAS 105-58-8 Battery Grade Electrolyte Solvent

• Ultra-High Purity (≥ 99.9%): Minimizes impurities that can interfere with sensitive electronic or pharmaceutical reactions.

• Ultra-Low Moisture (≤ 20 ppm for Battery Grade): Prevents the formation of HF in batteries, protecting internal components.

• Superior Solvency: Excellent ability to dissolve resins, oils, and nitrocellulose for coating applications.

• Wide Liquid Range: Remains in a liquid state across a wide temperature spectrum, ideal for versatile climate applications.

Diethyl Carbonate, commonly known as DEC (CAS 105-58-8), is a high-purity organic solvent with the molecular formula C5H10O3.

DEC is a colorless, transparent liquid with a mild, pleasant odor. It is widely recognized as a critical component in the production of lithium-ion battery electrolytes due to its excellent electrochemical stability and ability to lower electrolyte viscosity. Beyond the energy sector, it serves as a "green" alternative to toxic solvents in organic synthesis, playing a vital role in the production of pharmaceuticals, agricultural chemicals, and high-performance resins.

Applications

Lithium-Ion Battery Electrolytes

Used as a primary co-solvent in lithium battery electrolytes to reduce viscosity and improve low-temperature discharge performance.

Organic Synthesis Intermediate

Acts as an ethylating agent and carbonylating agent in the production of pharmaceuticals, pesticides, and fine chemicals.

Specialty Resin and Coating Solvent

Serves as a high-quality solvent for nitrocellulose, cellulose ethers, and synthetic resins in the paint and lacquer industry.

Textile Dyeing and Printing

Utilized as a carrier and solvent in specific textile processing applications to improve dye penetration and uniformity.

Electronic Cleaning Agent

Applied in the precision cleaning of electronic components and optical instruments due to its low surface tension and residue-free evaporation.

Packaging & Logistics

• Standard Packaging: 200 kg galvanized iron drums; 1,000 kg IBC tanks; or ISO Tanks.

• Shipping Classification: UN 2366, Diethyl Carbonate, Class 3, PG III (Flammable Liquid).

• Storage: Store in a cool, dry, and well-ventilated fireproof warehouse. Keep away from heat, sparks, and oxidizing agents.

Synonyms

DEC; Carbonic acid diethyl ester; Diatol; Ethyl carbonate.

Matching Materials

• Lithium Hexafluorophosphate (CAS 21324-40-3): The standard electrolyte salt used in combination with DEC.

• Ethylene Carbonate (EC) (CAS 96-49-1): Often blended with DEC to balance dielectric constant and viscosity.

• Ethyl Methyl Carbonate (EMC) (CAS 623-53-0): A common co-solvent used in ternary electrolyte systems.

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