Sorption of microamount of colloidal silver iodide on hydrated iron(III) oxide

Sorption of a microamount of colloidal silver iodide labelled with 131I on hydrated iron/III/ oxide suspension was studied. The sorption dependence upon pH, sorbent amount, and inert electrolyte concentration has revealed that sorption of silver iodide reaches no more than 63%. The sorption lasted one hour during which the maximum value was reached. Desorption time was one hour, as well. Except for measuring the sorption dependence on pH, the sorption pH was 7.0, temperature 24+-20C. (F.G.)