Dichloromethane

Dichloromethane Methylene chloride; CH₂Cl₂ = 84.93 (75-09-2)

Analytical reagent grade of commerce.

A colourless liquid, sparingly soluble in water, miscible with alcohol; boiling point, about 40°; weight per mL, about 1.32 g.

Dichloromethane used in fluorimetry complies with the following test.

Fluorescence Under radiation at 365 nm, the fluorescence measured at 460 nm in a 1-cm cell is not more intense than that of a solution in 0.05m sulfuric acid containing 0.002 µg per mL of quinine, Appendix II E.