The γ-radiolysis of zeocarb 225 cation-exchange resins

Irradiation of Zeocarb 225 cation-exchange resin leads to a loss of exchange capacity and the formation of SO42− ions. G(SO42−) is dependent upon the relative amount of water associated with the resin and may be reduced by the addition of scavengers, reactive towards hydroxyl radicals. The results suggest that both direct and indirect radiolyses are able to bring about desulphonation and that hydroxyl radicals are responsible for the indirect radiolysis.