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Trihalomethanes were the subject of the first drinking water regulations issued after passage of the U.S. Safe Drinking Water Act in 1974. [ 5 ] The EPA limits the total concentration of the four chief constituents ( chloroform , bromoform , bromodichloromethane , and dibromochloromethane ), referred to as total trihalomethanes (TTHM), to 80 ...
Chloroform, [10] or trichloromethane (often abbreviated as TCM), is an organochloride with the formula C H Cl 3 and a common solvent.It is a volatile, colorless, sweet-smelling, dense liquid produced on a large scale as a precursor to refrigerants and PTFE. [11]
Swimming pools using chlorine have been found to contain trihalomethanes, although generally they are below current EU standard for drinking water (100 micrograms per litre). [4] Concentrations of trihalomethanes (mainly chloroform ) of up to 0.43 ppm have been measured. [ 5 ]
Bromodichloromethane is a trihalomethane with formula C H Br Cl 2.It is a colorless, nonflammable liquid which will dissolve in water, or evaporate in air. [1] Most of the chemical is produced through the chlorine disinfection process, [1] and as a result it can occur in municipally-treated drinking water. [2]
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Chloroform: Solvent CHCl 3: Trichlorofluoromethane: Freon-11, R-11 CFC-11 CCl 3 F: Dichlorodifluoromethane: Freon-12, R-12 CFC-12 CCl 2 F 2: Chlorotrifluoromethane: CFC-13 CClF 3: Chlorodifluoromethane: R-22 HCFC-22 CHClF 2: Trifluoromethane Fluoroform: HFC-23 In semiconductor industry, refrigerant CHF 3: Chlorofluoromethane: Freon 31 ...