Electrolytic investigations: New method for the electrolytic separation of copper and antimony from tin

✍ Scribed by George Norwitz

• Publisher: Elsevier Science
• Year: 1950
• Tongue: English
• Weight: 198 KB
• Volume: 4
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(50)80083-1

✦ Synopsis

Copper can be separated from tin by elcctrodeposition from a phosphoricnitric acid medium?, or a hydrofluoric-nitric acid medium2* 4. Such separations, however, have a distinct drawback. Before the tin can be determined on the electrolyte the solution must be fumed with sulfuric acid to drive off the nitric acid. It would be advantageous to have a method that would eliminate the necessity of fuming with sulfuric acid. The author discovered that a successful solution to the problem was to electrolyze the copper from a strong sulfuric acid medium. Small amounts of antimony (up to IO mg) were found to plate quantitatively with the copper and can be determined by difference.