EFFECTS OF CHLORINE AND BROMINE ON THE RADIOLYSIS OF GASEOUS HCl

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Abstract
Using an ionization chamber method, it has been shown that the energy required to create an ion pair in gaseous HCl, WHCl is 24.4 ± 0.6 eV. The hydrogen yield, G(H2)HCl gas at 23 °C = 8.0 ± 0.3, was independent of HCl pressure in the range 19 to 119 cm of Hg. The effects of added bromine demonstrate that at least two species are involved in hydrogen formation, and there are strong indications that one of these is an electron. A second species, designated as H11 and formed with a yield [Formula: see text], is not readily scavenged by bromine. The use of chlorine as a scavenger also provides evidence for the presence of more than one hydrogen-forming species. The data of an earlier study of the α-particle radiolysis have been corrected for back reactions of the chlorine which accumulated in the system. The corrected results are in reasonable agreement with those of this study.

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