![]() Abiotic processes are also believed to contribute to natural chloroform productions in soils, although the mechanism is still unclear. Many kinds of seaweed produce chloroform, and fungi are believed to produce chloroform in soil. The total global flux of chloroform through the environment is approximately 660 000 tonnes per year, and about 90% of emissions are natural in origin. The name "chloroform" is a portmanteau of terchloride (tertiary chloride, a trichloride) and formyle, an obsolete name for the methylidene radical (CH) derived from formic acid. The chloroform molecule can be viewed as a methane molecule with three hydrogen atoms replaced with three chlorine atoms, leaving a single hydrogen atom. ![]() The molecule adopts a tetrahedral molecular geometry with C 3v symmetry. It is miscible with many solvents but it is only very slightly soluble in water (only 8 g/L at 20☌). Chloroform was used as an anesthetic between the 19th century and the first half of the 20th century. Chloroform is a trihalomethane that serves as a powerful anesthetic, euphoriant, anxiolytic, and sedative when inhaled or ingested. It is a very volatile, colorless, strong-smelling, dense liquid produced on a large scale as a precursor to refrigerants and in turn PTFE. ![]() Chloroform, or trichloromethane (often abbreviated as TCM), is an organic compound with the formula C H Cl 3 and a common solvent.
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