Abstract
Dissolution rates of 95/5 brass cylinders in dilute sulfuric acid solutions have been determined as a function of rotational speed, acid concentration, oxygen partial pressure, temperature, apparent surface area, and corroding solution volume. The dissolution of copper from 95/5 brass was found to be auto‐ catalytic as in the case of pure copper and copper from 85/15 brass, and a similar mechanism/was indicated. Deviations due to changes in the brass surface were observed. The slower copper rate for 95/5 brass as compared to pure copper indicated that zinc entered solution by a displacement mechanism. At long times, the rate of dissolution of copper from 95/5 brass became independent of cupric ion concentration and was controlled mainly by the diffusion of oxygen to the metal‐solution interface.
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