Intermetallic compounds and the determination of copper and zinc by anodic stripping voltammetry |
| |
Authors: | Giovanni Piccardi Roberto Udisti |
| |
Institution: | Institute of Analytical Chemistry, University of Florence, 50121 Firenze Italy |
| |
Abstract: | The intermetallic CuZn compounds produced during the simultaneous deposition of copper and zinc at a preformed mercury film electrode were studied. Over a wide range of metal concentration ratios, the real concentrations of metals in the amalgam were calculated from the peak areas obtained by anodic stripping voltammetry. The results indicate the formation of CuZn (insoluble) and CuZn2 (soluble) compounds with Kso=5×10?4 and β2=100, respectively. The electrodeposition potential of ?0.85 V vs. SCE for the reduction of copper in presence of zinc is confirmed as correct. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |