Gasses evolved by ⁶⁰Co radiation degradation of strongly acidic ion exchange resins

Abstract

SynopsisThe irradiation damage and stability of pnlystyrene-divinylbenzene and phenolformaldehyde sulfonic acid ion exchange resins was investigated by determination of the radiolytic gases. A 440 curies GoCo radiation source was used. Commercial resins, Dowex 50W XI0 and Zeo-Karb 215, were prepared under strict conditions in free acid and in salt forms, in an excess of deaerated water, swollen with a known amount of water, and in a very dry state. A series of 6 equal samples were exposed to absorbed doses of 50-200 Mrad at a dose rate 2.5 X 10 5rad/hr. The gas analysis shows a very good linear does dependence of the evolved hydrogen and carbon monoxide.