CAS 616-38-6|C₃H₆O₃

Dimethyl Carbonate (DMC)

Low-toxicity carbonate ester solvent — critical co-solvent for lithium-ion battery electrolytes, green coatings solvent, and polycarbonate reagent.

Flash Point

17 °C (63 °F)

Boiling Point

90.1 °C

Grades

Industrial / Battery / Electronic

Packaging

Drum / Tote / Bulk

Physical Properties

Molecular FormulaC₃H₆O₃
Molecular Weight90.08 g/mol
CAS Number616-38-6
Boiling Point90.1 °C (194.2 °F)
Melting Point4.6 °C (40.3 °F)
Flash Point17 °C (63 °F) — Flammable
Density1.073 g/cm³ at 20 °C
Vapor Pressure5.4 kPa at 20 °C
Solubility in Water13.9 g/100 mL at 20 °C
Refractive Index1.3687 at 20 °C
Dielectric Constant3.1 at 25 °C
Auto-ignition Temp.458 °C (856 °F)
CH₃OCOOCH₃C₃H₆O₃ | MW 90.08 g/mol

Grades & Packaging

IndustrialBattery GradeElectronic Grade
55-gal Drums275-gal TotesBulk Tanker

Industrial Applications

Lithium-Ion Battery Electrolytes

Battery-grade DMC is a key co-solvent in lithium-ion battery electrolyte formulations. Low viscosity and high dielectric constant support ion conductivity.

Coatings & Resins

Low-toxicity, VOC-exempt solvent for waterborne and high-solids coatings. Replaces methylene chloride and other regulated solvents in polycarbonate synthesis.

Polycarbonate Production

Reagent in non-phosgene polycarbonate synthesis via transesterification. Greener alternative to phosgene-based routes.

Pharmaceutical Synthesis

Methylating and carbonylating agent in pharmaceutical intermediate synthesis. Safer alternative to dimethyl sulfate and methyl iodide.

Fuel Additive

Oxygenate additive in diesel and gasoline to reduce particulate emissions. Improves combustion efficiency and reduces soot formation.

Electronics Cleaning

Electronic-grade DMC for precision cleaning of circuit boards and optical components where low residue and fast evaporation are required.

Safety & Regulatory

NFPA Health2 — Moderate hazard
NFPA Flammability3 — Serious hazard
NFPA Reactivity0 — Stable
OSHA PEL (TWA)No established PEL
ACGIH TLV (TWA)Not established
DOT Hazard Class3 — Flammable Liquid
UN NumberUN 1161
Packing GroupII

DMC is a flammable liquid — store away from ignition sources in a cool, well-ventilated area. SDS and CoA available upon request.

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