Effects of Magnetic Fields on Anodic Dissolution of Copper in Solutions of Various Acidities

The effects of horizontal magnetic fields of 0-0.4 T on anodic polarization behavior of copper in neutral and acidic sulfate solutions were investigated. The anodic peak current and potential increased with increasing magnetic flux density. Increasing solution acidity increased the slope of the linear current-potential region, decreased the potential for the peak current and increased the peak current. The slope of the linear-potential region was not affected by applied magnetic fields in a neutral solution. A synergistic enhancing effect of magnetic fields and solution acidity on anodic dissolution of copper at high potentials was observed.