Methylene Chloride

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methylene chloride

[′meth·ə‚lēn ′klȯr‚īd]
(organic chemistry)
CH2Cl2 A colorless liquid, practically nonflammable and nonexplosive; used as a refrigerant in centrifugal compressors, a solvent for organic materials, and a component in nonflammable paint-remover mixtures.

Methylene Chloride


CH2C12; a colorless liquid with an odor similar to that of chloroform. Boiling point, 40°C ; density, 1.3255 g/cm3 at 20°C . It is miscible with organic solvents; its solubility in water is 1.32 g per 100 g at 25°C . Methylene chloride reacts with water to form an azeotrope (boiling point, 38. TC; 98.5 percent CH2C12).

Methylene chloride is prepared commercially by chlorination of methane, which also produces methyl chloride and chloroform. It is used as a solvent for plastics, rubber, cellulose esters, and fats, as well as in the extraction of essential oils. Methylene chloride has a mild narcotic effect.

References in periodicals archive ?
The report provides a basic overview of Dichloromethane (Methylene Chloride) market including definitions, classifications, applications and industry chain structure.
Dichloromethane (methylene chloride): metabolism to formaldehyde and formation of DNA-protein cross-links in B6C3F1 mice and Syrian golden hamsters.
05 M) was dissolved in 50 mL of dichloromethane instead of water.
The dichloromethane fraction of the branches was eluted in dichloromethane:acetone 7:3 (v/v), and after the staining of the chromatographic plate with Dragendorff reagent, orange spots that interacted strongly with the silica (retention factor: intermediate to high) could be visualized, indicating the presence of alkaloids as constituents of this fraction.
However, it could be partly due to the fact that dichloromethane is used in the manufacturing process of some HFCs, the 'ozone-friendly' gases which were developed to replace CFCs.
MCL says it does not need to use dichloromethane solvent to reduce two-thirds of exhaust recycling equipment cost.
The extracts were allowed to settle for 1-2 hours, filtered through a funnel fitted with cotton wool and sodium sulphate, into clean amber coloured extraction bottles washed with dichloromethane.
Dichloromethane, hexane and other solvents used in this experiment were of high performance liquid chromatography grade.
b]), in 96% ethanol at 37[degrees]C (B/96E37) and in water and dichloromethane (B/SRT).
The only organic compounds found by Viking, chloromethane and dichloromethane, were interpreted as contaminants from Earth, since they are common in cleaning fluid and explosives.
The present study investigated the anti-oxidant and anti-ulcer properties of the dichloromethane fraction of H.
The solvent dichloromethane (DCM) and other chemicals used in the current project were of HPLC grade procured from Ranbaxy Fine Chemicals Ltd, India.