Halomethane compounds are derivatives of methane (CH4) with one or more of the hydrogen atoms replaced with halogen atoms (F, Cl, Br, or I). Halomethanes are both naturally occurring, especially in marine environments, and human-made, most notably as refrigerants, solvents, propellants, and fumigants. Many, including the chlorofluorocarbons, have attracted wide attention because they become active when exposed to ultraviolet light found at high altitudes and destroy the Earth's protective ozone layer.
Halomethane compounds are derivatives of methane (CH4) with one or more of the hydrogen atoms replaced with halogen atoms (F, Cl, Br, or I). Halomethanes...
Dibromomethane or methylene bromide, or methylene dibromide is a halomethane with the formula CH2Br2. It is slightly soluble in water but very soluble...
then reacts with a molecule of the halogen to form a molecule of the halomethane, with a new halogen atom as byproduct. Similar reactions can occur on...
Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl2F. It is a colorless and odorless gas. It...
the hydrocarbon methane. It can also be classified as a haloalkane or halomethane. Tetrafluoromethane is a useful refrigerant but also a potent greenhouse...
Trifluoroiodomethane, also referred to as trifluoromethyl iodide is a halomethane with the formula CF3I. It is an experimental alternative to Halon 1301...
CO + 2 CH• 3 It is also produced by the ultraviolet dissociation of halomethanes: CH 3X → X• + CH• 3 It can also be produced by the reaction of methane...
designated the compound a non-ozone layer depleter. For more information, see Halomethane. Haloalkane or alkyl halides are the compounds which have the general...
Chloroiodomethane is the halomethane with the formula is CH 2ClI. It is a colorless liquid of use in organic synthesis. Together with other iodomethanes...
ozone-layer-depleting halomethanes in refrigerators, freezers, and air conditioning systems. The operating pressure for butane is lower than for the halomethanes such...
Dibromodifluoromethane is a mixed halomethane. It is a colorless non-flammable liquid. Along with Halons 1211, 2402, and 1301, it is one of the most effective...
usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. In compliance...
an aromatic diketone: 1,3-diphenylpropane-1,3-dione Dibromomethane, a halomethane Difference bound matrix, a data structure used in a field of computer...
non-polar. Methane gas has the same structure, making carbon tetrachloride a halomethane. As a solvent, it is well suited to dissolving other non-polar compounds...
Bromochloromethane or methylene bromochloride and Halon 1011 is a mixed halomethane. It is a heavy low-viscosity liquid with refractive index 1.4808. Halon...
US National Transportation Safety Board recommended that aircraft use halomethane extinguishers instead of traditional hand-held fire extinguishers. Flight...
in the early 2000s. From the chemistry perspective, it is one of the halomethanes. Marine organisms are estimated to produce 56,000 tonnes annually. It...
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine...
Dibromofluoromethane is a mixed halomethane. It is soluble in alcohol, acetone, benzene and chloroform. It is prepared from dibromomethane and antimony(III)...
Chloroform, or trichloromethane (often abbreviated as TCM), is an organic compound with the formula CHCl3 and a common solvent. It is a very volatile,...
magazine published in the United Kingdom Bromochloromethane, a mixed halomethane Bak chor mee, a Singaporean noodle dish Band Corporal Major, a warrant...
Chloromethane, also called methyl chloride, Refrigerant-40, R-40 or HCC 40, is an organic compound with the chemical formula CH3Cl. One of the haloalkanes...
Fluoroiodomethane is the halomethane with the formula FCH2I. Also classified as a fluoroiodocarbon (FIC), it is a colorless liquid. It is a reagent for...
Iodoform (also known as triiodomethane) is the organoiodine compound with the chemical formula CHI3. It is a pale yellow, crystalline, volatile substance...
low temperatures by undergoing phase change between liquid and gas. Halomethanes were frequently used, most often R-12 and R-22, often with liquified...
Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula CH2Cl2. This colorless, volatile liquid...
Bromotrifluoromethane, commonly referred to by the code numbers Halon 1301, R13B1, Halon 13B1 or BTM, is an organic halide with the chemical formula CBrF3...
Dimethyl methylphosphonate can be prepared from trimethyl phosphite and a halomethane (e.g. iodomethane) via the Michaelis–Arbuzov reaction. Dimethyl methylphosphonate...
Carbon tetrabromide, CBr4, also known as tetrabromomethane, is a bromide of carbon. Both names are acceptable under IUPAC nomenclature. CBr4 can be obtained...
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