Abstract
The dissolution of crystal‐bar zirconium in aqueous solutions containing and was investigated by means of electrochemical techniques. Capacities were determined by measuring the initial slope of the voltage‐time curve resulting from the application of galvanostatic pulses. Steady‐state polarization curves were obtained potentiostatically whenever possible, and galvanostatic polarization curves were determined by a pulse technique. The data are explained by assuming that the dissolution reaction involves the continuous formation and dissolution of a film on the surface of the metal. The conventional anodizing equation describes the formation of the film and the dissolution reaction is controlled by the rate of mass transfer of undissociated to the surface of the film.
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