Radiation Effects on Ion-Exchange Resins. Part II. Gamma Irradiation of Dowex 1.

摘要

The effects were determined of gamma radiation on the anion exchange resin,Dowex 1. Part I on Dowex 50W was reported May 10, 1974. The exchange capacity (both strong and weak base),moisture content,radiolysis products,and physical deterioration of the resin were analyzed after irradiation with doses up to 6.9 x 10exp 8rads. The resin capacity decreased approximately 50percent after a radiation dose of 4 x 10exp 8rads. Resin irradiated,when air dried in the nitrate form,showed more stability than resin irradiated in 7N nitric acid (HNO sub 3 ),which in turn showed more stability than resin irradiated when air dried in the chloride form. Radiation decreased the strong base capacity to a greater extent than the total capacity. The result indicates that some of the quarternary ammonium groups were transformed to secondary and tertiary amine groups that have weak base ion-exchange capability.