ABSTRACT

The distribution coefficient of cadmium between calcite and solution has been measured in the calcium bicarbonate solution containing cadmium and chloride ions, which form complexes with cadmium ions. It has been confirmed experimentally that cadmium carbonate is present as a solid solution between calcitic calcium carbonate and cadmium carbonate in the carbonate precipitate formed in the solution system. The constant value of the thermodynamic distribution coefficient was not obtained in the solution system. It may have been caused by the very specific behavior of cadmium ions.