Dimethyl Carbonate

DMC Solvent Distributors in Mumbai, India

DMC

CAS Number:616‑38‑6

Synonyms: Dimethyl carbonate; Methyl carbonate, di‑; DMC

Chemical Formula:C₃H₆O₃

Product Introduction

Dimethyl carbonate is a colorless, flammable liquid with a mild sweet odor. Considered a “green” reagent, it serves as a weak methylating agent and is exempt from VOC regulations. It’s used as a solvent, electrolyte component for lithium‑ion batteries, and in producing polycarbonates.

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Physical & Chemical Properties

Property Value
Appearance Colorless liquid
Odor Mild, pleasant
Density @ 25 °C 1.069–1.073 g/mL
Melting Point 2–4 °C
Boiling Point ~90 °C
Flash Point 17–21 °C
Vapor Pressure @ 25 °C ~18 mm Hg (relative)
Refractive Index (n₂₀ᴅ) ~1.3687
Solubility in Water @ 20 °C ~13.9 g/100 mL; miscible with organics
Molecular Weight 90.08 g/mol
Vapor Density ~3× air

Applications

  • Green solvent & VOC‑exempt reagent: Used in coatings, adhesives, and lithium‑ion battery electrolytes.
  • Methylation agent: Preferred over toxic alternatives (like methyl iodide) due to low toxicity and biodegradability.
  • Intermediate: In the synthesis of diphenyl carbonate for polycarbonate production and other organic reactions.

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