Methylene Chloride


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.

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 ?
Trichloroethylene 685 Methylene Chloride 752 Perchloroethylene 617 2 tonnes of n-Propyl Bromide (EnSolv) is 1504 litres.
Methylene chloride continues in favor among several decaffeinators and many American roasters.
My curiosity aroused, I decided to do a little digging and pulled out the books, opened the file folders, made a pot of caffeinated coffee, and got on the telephone to my coffee friends to see what I would find out about methylene chloride decaffeinated coffee.
1 tonne of product is: Trike 685 Litres; Methylene Chloride 752 Litres; and Perch loroethylene 617 Litres.
It is ironic to note that the reason for the ban on methylene chloride was not because of possible ill-health effects.
Frank Young wrote to the Public Citizen Litigation Group, on June 8, that "decaffeination use of methylene chloride...poses minimal exposure, especially because of the apparent trend of declining use of this substance."
"Recycled and treated oil or gas wastewater used for irrigation can be contaminated by a variety of toxic chemicals, including industrial solvents such as acetone and methylene chloride, and hydrocarbons (oil components)." said Jerome Rigot, PhD, a staff scientist at Cornucopia.
Tenders are invited for Desmodur "Re" (20 % Solution Of Triphynyl-Methane 4 4~ 4" Tri Iso Cyanate In Methylene Chloride).
Dichloromethane HPDL Grade, Methylene Chloride, Syphilis Ab Elisa Kits, ID Diaclone ABD/ABD, ID Diacells ABO, ID Dia Dc Screening lxl2cards, ID Coombs Cards 4320T, Polyethylene Glycol, Rh Extended phenotype, 3 cell panel kits, 11 cell panel kits, Low Ionic Strength Solution (Liss), Antisera K, Antisera S, Antisera "s", Antisera FYa, Antisera FYb, Antisera JKa, Antisera JKa, Antisera JKb, Antisera M, Antisera N, Antisera Lea, Antisera lua, Antisera Luh.
Pfizer did not have the proper air pollution controls to prevent leaks of methylene chloride gas used in the manufacturing process.
They can be exposed to methylene chloride and anti-freeze, and are suited for low-coolant, low-hydraulic monitoring in off-highway vehicle and transportation applications.
In addition to the three deaths, OSHA identified 10 other bathtub refinisher fatalities associated with methylene chloride stripping agents that had been investigated in nine states during 2000-2011.