Concentrated Copper Cyanide Plating Baths
- 1 January 1935
- journal article
- Published by The Electrochemical Society in Transactions of The Electrochemical Society
- Vol. 68 (1) , 471-482
- https://doi.org/10.1149/1.3493886
Abstract
In an earlier publication the author showed that maximum efficiency may be obtained from a cyanide copper plating bath in which the copper concentration is 1 N (63.6 g./L.). The effect of free cyanide and carbonate upon such a bath was now studied in order to determine the optimum concentrations of these constituents. Upon comparing a bath containing 1N copper, 0.17 N free cyanide (8.3 g./L. NaCN) and 1.5 N sodium carbonate with the commonly used acid copper sulfate bath, distinct advantages in favor of the cyanide bath are recorded.Keywords
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