The Electrodeposition Behavior of Traces of Silver

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Abstract
By means of radioactivity, the extent of silver deposition on platinum cathodes was determined at various potentials under conditions closely approaching equilibrium. For any specific solution having a concentration of silver of 10−5 M or greater, the resulting curve agreed well with the polarographic curve. For concentrations equal to or smaller than 10−7 M, the amount of silver was insufficient to cover the electrode and the resulting deposition curves often shifted to a potential several tenths of a volt more “noble” than that predicted by the Nernst equation. The shift, which may be the result of alloy formation, was influenced greatly by the “inert” electrode material.

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