The analysis of the dependence of anode dissolution of iron subgroup metals on pH in acidic solutions of electrolytes is conducted. It is shown that the positive orders of anode dissolution by hydroxide ions obtained in many works are apparent. It is stipulated by the fact that, for their calculation, the currents measured at a constant potential (rather that at overvoltage) were used. If one conducts measurements at the same deviation from a stationary potential, with other things being equal, the rate of anode metal dissolution appears a Uttle dependent on pH of a solution. It allows us to conclude that hydroxide ions do not participate immediately in anode metal dissolution in acidic media, and therefore the classical schemes of anode processes ("hydroxide theories") ratified in the literature should be revised.

• Ткаленко Максим Дмитрович (хімічні науки)

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