Alternating current chronopotentiometry—III. Electroreduction of silver(I), cadmium(II), and thallium(I) in calcium nitrate tetrahydrate melt

The electroreduction of silver(I) on a platinum electrode and of cadmium(II) and thallium(I) on a mercury electrode has been studied by alternating current chronopotentiometry. Expected relations for the diffusion controlled, one-electron deposition of an insoluble substance are obeyed for silver(I); but reduction of cadmium(II) on mercury is more complex. Nucleation of metallic thallium is the rate controlling process during the early stages of the reduction of thallium(I).