Electron spin resonance studies of fundamental processes in radiation and photo-chemistry. Part 4.—γ-Irradiated potassium alkyl sulphates between 77 and 300°K
The effect of ionizing radiation on potassium methyl and ethyl sulphates has been examined, using electron spin resonance to identify the trapped paramagnetic species. After γ-irradiation at 77°K the radicals ĊH2OSO–3 and CH3ĊHOSO–3 predominate in the methyl and ethyl compounds respectively, and some SO–3 is seen. Above 200°K only SO–3 remains; its identity was confirmed by an analysis of the 33S hyperfine interaction. Mechanisms for the radiolysis are discussed.