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The adsorption of 1-hydroxyethylidene-1,1 -diphosphonic acid (HEDP) on an iron electrode in neutral aqueous solution has been examined by the radiotracer method. The role of calcium and zinc cations in the adsorption mechanism has also been studied in order to understand the synergistic effect when HEDP is applied together with these cations

The Effect of Bivalent Cations in the Adsorption of Phosphonic Acids on Iron Electrodes Studied by the Radiotracer Method