Study on distribution coefficient of bromine ions from aqueous solution on ion exchange resins Duolite A-161 and Duolite A-162

摘要

The ion exchange resins Duolite A-161 and Duolite A-162 in bromide form were equilibrated separately with the labeled radioactive bromide ion solution of different concentrations varied from 0.005 to 0.100 M in the temperature range 25.0-45.0°C. The K _d values of bromide ions for Duolite A-162 were found to be higher than that for Duolite A-161 under similar experimental conditions. The difference in K _d values of bromide ions for these two resins is produced by a swelling pressure depending on the water holding capacities.