Xenon-sensitized radiolysis of hydrogen sulphide in the presence of HBr, N2O, CCl4, and SF6

Abstract

The γ-radiolysis of hydrogen sulphide in the excess of xenon : as studied as a function of added HBr, N₂O, CCl₄ and SF₆. Addition of HBr results in the considerable increase of H₂ yield while addition of excess of N₂O, CGl₄ and SF₆ reduces G(H ₂ ) to almost zero. When N₂O is present, the N₂ yield also varies with the H₂S/N₂O ratio, being uninfluenced by the addition of small amounts of SF₆ Consideration of possible ionic and nonionic reactions leads to the conclusion that hot hydrogen atoms play a major role in the formation both of hydrogen and nitrogen. The mechanism of electron attachment and ion recombination processes is proposed which is consistent with all the obtained data.