Exchange of Radiochlorine between Hydrogen Chloride and Carbon Tetrachloride. ``Red Form'' of Solid Hydrogen Chloride

1960 ◽  
Vol 32 (4) ◽  
pp. 1214-1217 ◽  
Author(s):  
Irving M. Pearson ◽  
Clifford S. Garner
1969 ◽  
Vol 27 (5) ◽  
pp. 1365-1365 ◽  
Author(s):  
Tadashi Kobayashi ◽  
Mitsuo Ida ◽  
Shuji Kawada

1970 ◽  
Vol 48 (8) ◽  
pp. 1273-1279 ◽  
Author(s):  
R. M. Leblanc ◽  
M. A. West ◽  
R. J. Woods ◽  
J. A. Herman

Mixtures of ethyl iodide with chloroform, carbon tetrachloride, and dichloromethane have been irradiated with 60Co γ-radiation. Reduced yields of iodine, hydrogen iodide, and hydrogen chloride from ethyl iodide – chloroform and ethyl iodide – dichloromethane mixtures and of chlorinated ethanes from ethyl iodide – chloroform are attributed to radical scavenging by iodine and dissociative electron capture by the chlorinated methane.Electron capture by carbon tetrachloride followed by ion–molecule reactions between ethyl iodide cations and ethyl iodide, or neutralization of these cations by chlorine anions, explains iodine yields observed at low ethyl iodide concentrations in carbon tetrachloride greater than those expected on the basis of partition of absorbed energy. In this mixture, neutralization of an ethyl iodide cation by a chlorine anion gives rise to an enhanced hydrogen chloride yield.


Nature ◽  
1967 ◽  
Vol 213 (5072) ◽  
pp. 171-172 ◽  
Author(s):  
E. SÁNDOR ◽  
R. F. C. FARROW

1958 ◽  
Vol 36 (9) ◽  
pp. 1223-1226 ◽  
Author(s):  
S. E. Sobering ◽  
C. A. Winkler

Cyanogen chloride and chlorine were the only gaseous products observed in the reaction of active nitrogen with carbon tetrachloride at 110° and 420 °C. The product yields tended towards limiting values at higher reactant flow rates, and increased with increase of temperature at all flow rates. The reactions of active nitrogen with chloroform and dichloromethane at 260° and 420 °C yielded hydrogen chloride, hydrogen cyanide, and cyanogen, in addition to cyanogen chloride and chlorine. The behavior of the product yields with reactant flow rates and temperature was similar to that of the products from carbon tetrachloride.


1962 ◽  
Vol 40 (7) ◽  
pp. 1385-1393 ◽  
Author(s):  
D. A. Armstrong

Hydrogen yields from pure liquid and solid hydrogen chloride irradiated with Co60 γ-rays were [Formula: see text](liquid) = 6.50 ± 0.10 and [Formula: see text] (solid) = 3.30 ± 0.10 at −79 °C and −196 °C respectively. The yield from solid hydrogen chloride was only slightly reduced by the addition of chlorine; but the yield from liquid samples was reduced sharply by low concentrations of chlorine to a value of about 4.5, and then much more gradually by larger concentrations. A [Formula: see text] value of 2.1 persisted at 10 mole% chlorine. The results were interpreted in terms of the formation of hydrogen in the reactions[Formula: see text]and[Formula: see text]Reduction of the hydrogen yields by chlorine was attributed to the reactions[Formula: see text]and[Formula: see text]Values of k11/k15 and k11*/k15* were estimated to be 1.7 × 10−3 and 0.10 respectively, while those of GH and GH(hot) were 2.4 ± 0.2 and 4.0 ± 0.2. Electron scavenging by chlorine was considered as a less likely mechanism for reduction of the hydrogen yield. Sources of the thermal and hot hydrogen atoms were examined and it was suggested that the decomposition of electronically excited molecules might be an important mode of decomposition.


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