Dichloromethane (DCM)

Overview

Dichloromethane (methylene chloride, DCM) is a colorless, volatile, non-flammable liquid with a sweetish odor. It is a strong solvent for many resins, fats and organic compounds.

Also known as

DCM; Methylene chloride; Methylene dichloride

CAS number

75-09-2

Molecular formula

CH2Cl2

Molecular weight

84.93

Specifications

Test items	Specifications
Appearance	Colorless transparent liquid
Content /%	≥99.99
Water content /%	≤0.03
Color (APHA, Pt-Co)	≤10
Evaporation residue /%	≤0.002
Acid value /(mmol/g)	≤0.0003
Free chlorine /%	≤0.0001
Density /(g/cm³)	1.32-1.33

Applications

• Auxiliary blowing agent for flexible polyurethane foam
• Solvent for pharmaceutical processing and extraction
• Metal degreasing and cleaning solvent
• Process solvent for polycarbonate and cellulose triacetate film

Packaging

270 kg/drum; ISO tank on request.

Storage

Store in tightly closed containers in a cool, dry, well-ventilated place away from heat and direct sunlight. The vapor is harmful; avoid breathing it.