Mercury(II) oxide and silver(I) oxide electrodes in aqueous solutions

The std. aq. potentials of the mercury(II) oxide electrode and of the silver(I) oxide electrode covering the temp. range from 283 to 318 K were critically analyzed (with special attention to the std. states implied) and redetd.: as a result, recommended values are tabulated for both the resp. «acid» and «basic» std. potentials. From these potentials, accurate values for the std. soly. products of the corresponding hydroxides, Hg(OH)2 and AgOH, were also derived. The usefulness and applications of the mercury(II) oxide electrode, as well as the limited applicability of the silver(I) oxide electrode, are described.