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Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula C H 2 Cl 2. This colorless, volatile liquid with a chloroform-like, sweet odor is widely used as a solvent. Although it is not miscible with water, it is slightly polar, and miscible with many organic solvents. [12]
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
log 10 of Dichloromethane vapor pressure. Uses formula: log e P m m H g = {\displaystyle \scriptstyle \log _{e}P_{mmHg}=} log e ( 760 101.325 ) − 10.08632 log e ( T + 273.15 ) − 6030.610 T + 273.15 + 80.87786 + 9.812512 × 10 − 6 ( T + 273.15 ) 2 {\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-10.08632\log _{e ...
Dichloromethane, also called methylene chloride, was once a popular solvent, but its use has been declining because of health concerns. [1] Traditional solvent paint strippers penetrate the layers of paint and break the bond between the paint and the object by swelling the paint. [2]
According to the EPA, methylene chloride is known to cause a range of cancers, as well as neurotoxicity and liver damage, while direct exposure can lead to death. The agency has reported that at ...
In the laboratory it is occasionally used as a source of chlorine, with elimination of ethene and chloride. Via several steps, 1,2-dichloroethane is a precursor to 1,1,1-trichloroethane . Historically, before leaded petrol was phased out, chloroethanes were used as an additive in petrol to prevent lead buildup in engines.
Some haloalkanes are still widely used for industrial cleaning, such as methylene chloride (dichloromethane), and as refrigerants, such as R-134a (1,1,1,2-tetrafluoroethane). Haloalkenes have also been used as solvents, including perchloroethylene (Perc, tetrachloroethene), widespread in dry cleaning, and trichloroethylene (TCE, 1,1,2 ...
"Sesame Street" has been gentrified. After 45 seasons, the brick walls that once fenced in the neighborhood have been razed, giving way to sweeping views of what looks suspiciously like the Brooklyn Bridge (it is in fact a composite of three New York City bridges).