Abstract
It is widely known on the effects of inorganic anions and organic ions on the corrosion behaviors of iron. Since these ions inhibit corrosion by the adsorption on iron surface, it is valued for their adsorption capacity to determine it as a function of electrode potential. Adsorption capacity of inorganic ions was found to be arranged in ascending order of ClO4-<Cl-<Br-<I- by C-E curves. Whereas, adsorption-desorption potentials of these anions were indicated by several peaks on the above curves. Synergism and antagonism between inorganic anions and organic ions were interpreted in terms of ionic adsorption at the interface between iron and acid solution.
