Exchange of Radioactive Silver and Bromide with Silver Bromide Suspensions

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Abstract
The exchange of radioactive silver and bromide ions with aqueous silver bromide suspensions was studied. It was observed that both constituents of the silver bromide lattice exchange with the ions in solution. A strong dependence of the exchange rate on the amount of surface of the precipitates used, for both the silver and the bromide was observed. A pronounced difference was found in the exchange rate for bromide if dye molecules were adsorbed on the precipitate prior to the exchange experiment. The rate for silver was not affected by the presence of the adsorbed dye molecules. A discussion of these results is included.