The mechanism of the initial corrosion of copper in hydrochloric acid solutions has been investigated, using a radioactive tracer technique. Kinetic data have been obtained showing the effect of p H, dissolved oxygen, chloride ion, and temperature on the corrosion rate. Surface areas were measured using a modified electrolytic method. On the basis of these data (reproducible to ± 20%), a mechanism for the initial corrosion process is proposed and discussed. Specific rate constants, heats, and entropies of activation for the slow step in the corrosion process were determined.
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Weeks et al. (1956) studied this question.
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