Chloroform

Abstract

Chloroform, CHCl 3 , at normal temperature and pressure is a heavy, clear, volatile liquid with a pleasant, ethereal, nonirritant odor. It is produced almost exclusively by the chlorination of methane or lower chlorinated methanes, though methane oxychlorination and carbon tetrachloride hydrogenation have been proposed. The U.S. chloroform capacity has been estimated at 327,000 t/yr but the actual capability is probably much higher because of the producer's ability to change their product mix between methylene chloride and chloroform. The main uses for chloroform are in the production of HCFC‐22 and fluoropolymers. Chloroform is regulated under a number of federal and state laws.

Pyrrolo-[3,2-b]pyrroles for Photochromic Analysis of Halocarbons

“…Halocarbons have wide industrial and agricultural applications, including as industrial solvents, refrigerants, and pesticides. However, the use of halocarbons is of great environmental concern due to their toxic effects that pose a serious threat to the environment, ecosystems, as well as human health. − Because they contaminate the atmosphere and surface and underground waters and the halogenated contaminants may undergo dehalogenation reactions to give more toxic products, the use of these compounds has to be monitored carefully . Contaminants of organic wastes by halocarbons also lead to dangerous consequences during waste treatment and incineration.…”

Optical Sensors for the Detection of Trace Chloroform

“…Chlorinated hydrocarbons (CHCs) pose a serious threat to the environment. − CHCs such as chloroform (HCCl 3 ) are widely used in many industries as a solvent, refrigerant, and pesticide. , The extensive use and production of HCCl 3 is on the scale of thousands of tons per year worldwide, which results in increased disposal of HCCl 3 into the environment in the form of aqueous wastes. One of the greatest concerns of CHCs such as HCCl 3 is that, with a solubility of 8.7(0.5) g/L or [5.8(0.3) × 10 3 μL/L or ca.…”