Abstract
Abstract The properties of the limiting current of the reduction wave of the hydrogen ion were studied in the system of dil. HCl in 0.1 n KCl solution. The relution between the limiting current and the concentration of the hydrogen ion in the bulk of the solution was linear, and the experimental relation between the limiting current and the height of the mercury reservior was interpreted by the revised Ilkovic equation. It was shown that the temperature coefficient of the limiting current is nearly equal to 1.0 % at 25° which is in agreement with the theoretical value computed from the revised Ilkovic equation. From these results it was concluded that the limiting current of the hydrogen ion obtained under the present condition is controlled by the diffusion process of the hydrogen ion.
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