Dichloroethane


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Dichloroethane

 

(also called ethylene chloride), ClCH2CH2C1, a colorless, mobile liquid with a smell similar to that of chloroform. Melting point, -35.9° C; boiling point, 83.5° C; density, 1.2600 g/cm3 (15° C); n15v 1.4476; flash point (open cup), 21.1° C; explosion limits in air, 6.20-15.90 percent by volume. It is poorly soluble in water (0.81 percent at 25° C) and forms an azeotrope with it (boiling point, 71.5° C; 82.9 percent dichloroethane).

Upon hydrolysis, dichloroethane yields ethylene glycol, HOCH2CH2OH. Vinyl chloride is produced upon pyrolysis or reaction with alkalies; with ammonia it gives ethylenediamine. Polysulfide rubber is produced upon heating with sodium polysulfide. Dichloroethane is made by treating ethylene with chlorine.

Dichloroethane is toxic. The maximum permissible concentration of vapor in air is 0.01 percent. It is widely used as a solvent in various industries and as a component of antiknock mixtures. It is also a fumigant and a raw material for making polysulfide rubber.

References in periodicals archive ?
The aniline (monomer) was dissolved in an organic solvent (dichloroethane) with the oxidant agent (ammonium persulfate) in 1 M HCl.
The elution was started with dichloroethane with subsequent stepwise increase of methanol content in the system.
The organic molecules found by the team also have chlorine atoms, and include chlorobenzene and several dichloroalkanes, such as dichloroethane, dichloropropane and dichlorobutane.
Polimeri plant owner Nikolay Banev will have to release the installation and to sell the Dichloroethane in 10 days, as well.
Thus, in most cases, the maximum concentration legislated in the country is more restrictive than the regulations of other countries/states, except only for 1,2 dichloroethane and phenols (Table 1).
Thiamine content was determined by weighing 0.5g of the sample and adding 30ml Dichloroethane and 30ml 0f 30% HCl (ratio1:1).
Initial combinations are (1) arsenic, cadmium, chromium, and lead; (2) benzene, toluene, ethylbenzene, and xylene; (3) lead, manganese, zinc, and copper; (4) cyanide, fluoride, nitrate, and uranium; (5) cesium, cobalt, PCBs, strontium, and trichloroethylene; (6) 1,1,1-trichloroethane, 1,1- dichloroethane, trichloroethylene, and tetrachloroethylene; (7) arsenic, hydrazines, jet fuels, strontium-90, and trichloroethylene.
Most commonly found chemical pollutants were benzene, benzo[a]pyrene (BaP), 1-2 dichloroethane, epichloridine, tetrachloroethane, trihalomethane and acrylamide.
(7) While PDB was the only chlorine-containing compound to be found a priority hazard, there were lots of chlorine containing chemicals lower down on the list including hexachlorobutadiene, benzyl chloride, vinyl chloride, methylene chloride, tetrachlorothene, dichloropropane, tetrachloroethane, dichloroethane, trichloroethene, and, of course, chlorine.
Work hygiene and the health condition of workers occupied in combating the leptinotarsa decemlineata with HCH and dichloroethane. Medycyna Pracy.5: 89-98.
Three studies on DDT levels in serum or breast milk from Kwa-zulu after DDT application for malaria control showed much higher DDT, DDE (dichlorodiphenyl dichloroethene, the most stable and persistent form of DDT), and DDD (dichlorodiphenyl dichloroethane) levels in the DDT-exposed group (14-16).
Dichloroethene and dichloroethane could be degradation products of tetrachloroethene and trichloroethane and, in fact, were found only at sites where one of the latter also was found.