Radiation chemistry of low-temperature aqueous glasses. Part 2.—Sulphuric acid glasses containing chloracetic acid

Abstract

G(H₂), G(Cl^–), G(N₂) and G(O₂) are recorded for 5.3 M H₂SO₄ glasses containing up to 1.0 M chloracetic acid ± N₂O and γ-irradiated at 77°K. From the dependence of G(H₂) and G(Cl^–) on [ClCH₂COOH] and the isotopic composition of the hydrogen when ClCD₂COOH is used as the solute it is concluded that [graphic omitted], i.e., the yield of scavengable electrons is 1.7 but that an additional species which may be mobile energy and can liberate Cl^– from chloracetic acid is formed in a yield of 2.1. The coproduct of Cl^– is shown to have an e.s.r. signal appropriate to ·CH₂COOH.