アミン類を主剤とする防食剤の研究 (第13報)

Abstract

Current flow measurements have been carried out on the copper-mild steel and mild steel-aluminum couples in 3% NaCl solution at 30°C. Electrodes were separated by a diaphragm, and corrosion inhibitor which was hexadecyl compound of each series, such as amine, acid amide, acid and mercaptan, was added in each chamber or in both, respectively. Almost inhibitors were adsorbed on both electrodes, but amine and mercaptan were found to be adsorbed chiefly by copper. The corrosion-inhibition of high molecular weight polar organic compounds took place because of general adsorption which interfered with both anodic and cathodic processes.