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Sherard Osborn Cowper-Coles
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Publication of GB190620380ApublicationCriticalpatent/GB190620380A/en
20,380. Coles, S. O. Cowper-. Sept. 13. Copper, depositing.-In order to improve the quality of electro-deposited copper, a small proportion of aluminium sulphate is added to the electrolyte. According to an example, a solution is employed containing 12 per cent of copper sulphate, 12 per cent of sulphuric acid, and 1 per cent of aluminium sulphate, at a temperature of 65‹ C.
GB190620380D1906-09-131906-09-13Improvements in Electrolytes for the Electro-deposition of Copper.
ExpiredGB190620380A
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