Methylene Chloride, also known as dichloromethane and Methylene Dichloride, is a clear, colorless, volatile liquid with a mild ethereal odor that is completely miscible with a variety of solvents.
Methylene Chloride is nonflammable, having no flash point as determined by standard test methods.
Methylene chloride (MC) is used in paint and varnish remover, in aerosols as a cosolvent or vapor pressure depressant, and in solvent degreasing and metal cleaning. It is also used in plastics processing and in extraction of fats and oils from food products (HSDB, 1999).
CAS Registry Number: 75-09-2 Chronic Toxicity Summary
Inhalation reference exposure level Critical effect(s)
Cardiovascular system; nervous system Physical and Chemical Properties (HSDB, 1999, except as noted)
Hazard index target(s)
Description Molecular formula Molecular weight Density Boiling point Vapor pressure Solubility
Major Uses and Sources
Colorless liquid CH2Cl2 84.93 1.32 g/cm3 @ 20° C (ACGIH, 1991) 39.75° C
400 torr @ 24.1° C Miscible with most organic solvents, slightly
soluble in water (ACGIH, 1991) 1 ppm = 3.47 mg/m3 @ 25° C
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