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A study of the anodic behavior of horizontal zinc electrodes in solution has shown that the equation holds for concentrations in the range 1–13.8M and passivation times in the range 10–800 sec. The constant depends on the concentrations and attains a maximum value in the region of ; , the maximum current density attainable without passivation, from a least squares fit is very near zero in all cases. From the linear parts of the curves connecting anode potential and time, values of indicate that the conductivity of the anodic product prior to passivation depends on the concentration of the electrolyte. This conductivity passes through a maximum in the same region as that which produces the longest passivation times.
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Hampson et al. (1963) studied this question.
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