The Nature of the Cadmium Ions in Hydroxide and Carbonate Solutions

The nature and concentration of the cadmium–containing ions in potassium hydroxide and potassium carbonate solutions have been studied polarographically. The coordination number for the hydroxide–cadmium complex is 4 and its dissociation constant 2×10−10. The coordination number for the carbonate–cadmium complex is 3 and its dissociation constant 6×10−7.