Abstract
The influences of current density, temperature, and acidity of electrolyte on the swelling and the corrosion of anode graphite which was anodically attacked by sulphate ions, were studied. The corrosion of graphite caused by swelling was found to be minimum at the following conditions; 3 to 5amp./dm2., above 50°C, and acidity of the electrolyte below 1N.
From the above results, it was confirmed that the corrosion of anode graphite in electrolysis of sodium chloride solution on the amalgam process was not caused by the swelling due to the sulphate ions contained as impurities in electrolyte, but to the anodic oxidation.
