Effect of Halide Additives on the Corrosion Behaviour of Lead in Chloroacetic Acid Solutions

Main Authors: E. A. HASSAN, A. S. ABO EL-MAGD, F. H. KAMAL, A. R. EBAID, M. Y. MOURAD
Format: Article Journal
Bahasa: eng
Terbitan: , 1984
Subjects:
Online Access: https://zenodo.org/record/6334450
Daftar Isi:
  • Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt Manuscript received 7 June 1982, accepted 3 August 1983 The effect of Cl-, Br- and I- ions on the corrosion behaviour of lead electrodes in aqueous solutions of mono-, di- and tri-chloroacetic acids is evaluated by studying the potential-time and weight-loss measurements. It has been found that the steady-state potentials which obey the relationship E = a - b log c, are shifted towards more negative values with the increase in the concentration or the additive ions. The decrease in the rate of corrosion with the increase of anion concentration, is probably due to the halide ions acting as anodic inhibitors.