Dissolution of Ni
Zn Alloys in Sulfate Solutions
V. V. Ekilik, A. G. Berezhnaya, and E. A. Tugolukova
Rostov State University, ul. B. Sadovaya 105, Rostov-na-Donu, 344006 Russia
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Received February 2, 2004
Abstract — The anodic behavior of nickel, zinc, and their alloys with the zinc content from 30 to 90% in blank sulfate solutions and in the presence of quinolinium perchlorate derivatives is studied. For the mixed dissolution kinetics, the effect of additives in the stages of ionization and liquid- and solid-phase diffusion is elucidated. The inhibition coefficients of the process are shown to correlate with hydrophobicity constants of alkyl substituents in organic cations.