The fluorination of tetrachloromethane with HF in the presence of NH 4 AlF 4 and γ-Al 2 O 3 in a high-temperature reactor yields CCl 3 F as the main product <1990GE(E)P278473>. The cited patent is the latest in a series of closely related patents. Both trichloromethane and tetrachloromethane react slowly with XeF 2 to form, inter alia, CCl 3 F ...

Carbon tetrachloride (CCl 4), also referred to as tetrachloromethane, is a chlorinated hydrocarbon used as a solvent, refrigerant, fire extinguisher, and dry-cleaning agent. The production and use of this compound have decreased significantly during the past decades because of the occurrence of numerous cases of multiorgan toxicity in ...

2014年4月8日 · tetrachloromethane has a higher mollecular mass than that of trichloromethane i.e tetrachloromethane has a Rmm=154 and trichloromethane has a Rmm=118.5 thus the heavier the mollecule the greater the forces of attraction between the mollecules hence a high boiling point and vice versa

2020年7月1日 · Tetrachloromethane or CCl 4 is an organo-chlorinated compound. It has a role as a refrigerant and a hepatotoxic agent and remains important intermediates and products of the chemical process industries. It is also a weak greenhouse gas, contributing to global warming [7].

Methane can form four chlorinated derivatives, including chloromethane, dichloro-methane (methylene chloride), trichloromethane (chloroform), and tetrachloromethane (carbon tetrachloride). The pyrolysis process of chlorinated derivatives of methane follows a path similar to that of methane, with the decomposition temperatures somewhat lower ...

1998年1月1日 · Twenty-Seventh Symposium (International) on Combustion/The Combustion Institute, 1998/pp. 52936 LAMINAR FLAME SPEEDS AND OXIDATION KINETICS OF TETRACHLOROMETHANE J. C. LEYLEGIAN, C. K. LAW1 and H. WANG2 1Department of Mechanical and Aerospace Engineering Princeton University Princeton, NJ 08544-5263, USA 2Department of Mechanical Engineering University of Delaware Newark, DE 19716-3140, USA ...

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2018年11月1日 · The aim of this study was to investigate the hepatoprotective effects of selenium-biofortified soybean peptides (SSPs) in liver fibrosis induced by tetrachloromethane (CCl 4) in rats. SSPs was found to remarkably attenuate the liver fibrosis by inhibiting α-smooth muscle actin (α-SMA) synthesis in the liver, and increasing the mRNA expression ...

2023年8月15日 · Chloromethanes, including mono, di, tri, and tetrachloromethane, can contribute to stratospheric ozone depletion and hinder ozone layer recovery. Leakage from industrial chloromethane production plants is a major anthropogenic source of chloromethanes; however, accurate estimations of the emission factors are limited.

1977年7月1日 · Molar excess enthalpies of ketone (1) -h tetrachloromethane (2) at 298.15 K. Experimental results: O, acetophenone; p, phenylacetone; p, benzylacetone. Curves calculated from equation (1) with coefficients from table 3. unlike molecules are stronger in the mixtures with benzene than in those with tetrachloromethane.