The Structure of the Mercury-solution Electrical Double Layer in the Presence of Adsorbed Oxyanions

The unusual adsorption characteristics of oxyanions are described with special reference to the adsorption of nitrate ions from KNO3 solutions. The adsorption energy is shown to be linearly dependent on the charge in contrast to the behavior previously found for mixed solutions of NH4NO3 (and also NH4ClO4) with NH4F at constant ionic strength where the dependence is approximately quadratic.