Methane tetrachloride

Synonyms AI3-04705 Benzinoform Carbona Carbon chloride Carbon tet Caswell No. 164 CCRIS 123 EINECS 200-262-8 ENT 4705 ENT 27164 EPA pesticide chemical code 016501 Fasciolin Flukoids Freon 10 Halon 1040 Methane tetrachloride Necatorina Necatorine NSC 87063 Perchloromethane R 10 RCRA waste number U211 Tetrachloormetaan Tetrachloro-carbon Tetrachloromethane Tetrafinol Tetraform Tetrasol UN 1846 Univerm Vermo-estricid. 

Methacrylic acid, methyl ester, see Methyl methacrylate Methaldehyde, see Formaldehyde Methanal, see Formaldehyde Methanamine, see Methylamine Methanecarbonitrile, see Acetonitrile Methanecarboxylic acid, see Acetic acid Methane dichloride, see Methylene chloride Methane tetrachloride, see Carbon tetrachloride Methanethiol, see Methyl mercaptan Methane trichloride, see Chloroform 6,9-Methano-2,4,3-benzodioxathiepin, see Endosnlfan sulfate... 

Note Nonpolar solvent soluble in alcohols, ethers, chloroform, benzene, and most fixed and volatile oils insoluble in water nonflammable extremely toxic by inhalation, ingestion, or skin absorption carcinogenic incompatible with allyl alcohol, silanes, triethyldialuminum, and many metals (e.g., sodium). Synonyms tetrachloromethane, perchloromethane, methane tetrachloride, Halon-104. 

Synonym tetrachloromethane, methane tetrachloride, perchloromethane, benzinoform... 

Synonyms Methane tetrachloride Carbon tet Carbon chloride Tetrachloromethane Perchloro-methane Tetrachlorocarbon Carbona Freon 10 Halon 104... 

Synonyms and trade names methane tetrachloride, tetra chloromethane, Fasciolin, Freon 10, Necatorine, Tetrafinol, Tetraform, Tetrasol. 

SYNONYMS Benzinoform, tetrachloromethane, carbon-tet, methane tetrachloride. 

SYNONYMS tetrachloromethane, methane tetrachloride, perchloromethane, benzino-form Carbon-chloride, Carbon-tet, Carbona, Flukoids, Freon-10, Halon-104, Methane, tetra-chloro-, Necatorina, Perchloro-methane, R-10 (refrigerant), R-10, Teraform, Tetra-finol, Tetra-form, Tetra-sol, Univerm, Vermoestricid... 

Synonyms Benzinoform Cartona Carton chloride Carton tet CTC Methane tetrachloride Perchloromethane Tetrachlorocarbon Tetrachloromethane Classification Chlorinated hydrocarbon Emprical CCI,... 

Synonyms tetrachloromethane, perchloromethane, methane tetrachloride, Halon-104. 

Carbon tetrachloride is known to deplete the ozone layer, where it is responsible for 17% of the ozone-destroying chlorine now in the stratosphere due to human activities. Carbon tetrachloride has a half-life of between 30 and 100 years. Synonyms for carbon tetrachloride are carbona carbon chloride carbon tet methane tetrachloride methane, tetrachloro- perchloromethane and tetrachloromethane. Its DOT Label is Poison, its CAS number is 56-23-5, and its UN number is 1846. 

CH2CI2. A colourless liquid with a chloroform-like odour b.p. 4I°C. Prepared by heating chloroform with zinc, alcohol and hydrochloric acid manufactured by the direct chlorination of methane. Decomposed by water at 200°C to give methanoic and hydrochloric acids. Largely used as a solvent for polar and non-polar substances, particularly for paint removal (30%), dissolving cellulose acetate and degreasing (10%). It is more stable than carbon tetrachloride or chloroform especially towards moisture or alkali. It is somewhat toxic. U.S. production 1981 280000 tonnes. 

Methylene chloride CHjCl, b.p. 41°, is obtained as a by product in the com mercial preparation of chloroform by the reduction of carbon tetrachloride with moist iron and also as one of the products in the chlorination of methane it is a useful extraction solvent completely immiscible with water. 

Without carbon, the basis for life would be impossible. While it has been thought that silicon might take the place of carbon in forming a host of similar compounds, it is now not possible to form stable compounds with very long chains of silicon atoms. The atmosphere of Mars contains 96.2% CO2. Some of the most important compounds of carbon are carbon dioxide (CO2), carbon monoxide (CO), carbon disulfide (CS2), chloroform (CHCb), carbon tetrachloride (CCk), methane (CHr), ethylene (C2H4), acetylene (C2H2), benzene (CeHe), acetic acid (CHsCOOH), and their derivatives. 

FIGURE 1 7 Contri bution of individual bond dipole moments to the mo lecular dipole moments of (a) carbon tetrachloride (CCy and (b) dichloro methane (CH2CI2)... 

Chlorine reacts with saturated hydrocarbons either by substitution or by addition to form chlorinated hydrocarbons and HCl. Thus methanol or methane is chlorinated to produce CH Cl, which can be further chlorinated to form methylene chloride, chloroform, and carbon tetrachloride. Reaction of CI2 with unsaturated hydrocarbons results in the destmction of the double or triple bond. This is a very important reaction during the production of ethylene dichloride, which is an intermediate in the manufacture of vinyl chloride ... 

Hafnium Carbide. Hafnium carbide, HfC, is a dark gray brittle soHd. This carbide can be prepared by heating an intimate mixture of the elements or by the reaction of hafnium tetrachloride with methane at 2100°C, but is commonly produced by the reaction of hafnium oxide with lampblack... 

Titanium carbide may also be made by the reaction at high temperature of titanium with carbon titanium tetrachloride with organic compounds such as methane, chloroform, or poly(vinyl chloride) titanium disulfide [12039-13-3] with carbon organotitanates with carbon precursor polymers (31) and titanium tetrachloride with hydrogen and carbon monoxide. Much of this work is directed toward the production of ultrafine (<1 jim) powders. The reaction of titanium tetrachloride with a hydrocarbon-hydrogen mixture at ca 1000°C is used for the chemical vapor deposition (CVD) of thin carbide films used in wear-resistant coatings. 

G s-Ph se Synthesis. A gas-phase synthesis route to making fine, pure SiC having controllable properties has been described (78,79). Methane was used as a carbon source if required, and the plasma decomposition of three feedstocks, siUcon tetrachloride [10026-04-7] SiCl, dimethyl dichi orosilane, and methyltrichlorosilane [75-79-6] CH Cl Si, into fine SiC powders was investigated. 

Chemical initiation generates organic radicals, usually by decomposition of a2o (11) or peroxide compounds (12), to form radicals which then react with chlorine to initiate the radical-chain chlorination reaction (see Initiators). Chlorination of methane yields all four possible chlorinated derivatives methyl chloride, methylene chloride, chloroform, and carbon tetrachloride (13). The reaction proceeds by a radical-chain mechanism, as shown in equations 1 through. Chain initiation... 

The most widely used method of analysis for methyl chloride is gas chromatography. A capillary column medium that does a very good job in separating most chlorinated hydrocarbons is methyl siUcone or methyl (5% phenyl) siUcone. The detector of choice is a flame ionisation detector. Typical molar response factors for the chlorinated methanes are methyl chloride, 2.05 methylene chloride, 2.2 chloroform, 2.8 carbon tetrachloride, 3.1, where methane is defined as having a molar response factor of 2.00. Most two-carbon chlorinated hydrocarbons have a molar response factor of about 1.0 on the same basis. 

Chloroform can be manufactured from a number of starting materials. Methane, methyl chloride, or methylene chloride can be further chlorinated to chloroform, or carbon tetrachloride can be reduced, ie, hydrodechlorinated, to chloroform. Methane can be oxychlorinated with HCl and oxygen to form a mixture of chlorinated methanes. Many compounds containing either the acetyl (CH CO) or CH2CH(OH) group yield chloroform on reaction with chlorine and alkali or hypochlorite. Methyl chloride chlorination is now the most common commercial method of producing chloroform. Many years ago chloroform was almost exclusively produced from acetone or ethyl alcohol by reaction with chlorine and alkali. 

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