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Effect of the addition of oxo-anions on the corrosion and passivation of tin in synthetic industrial water
Applied Surface Science (2006)
  • E. Ait Addi
  • L. Bazzi
  • M. Hilali
  • B. Hammouti
  • M. Mihit
Abstract
Effect of the addition of oxo-anions MoO42−, SiO42−, HPO42− and HCO3− on the corrosion and passivation of tin in a synthetic medium similar to industrial water has been studied by using electrochemical techniques. The results show that tin manifests a passivation phenomenon with breakdown of passivity. Addition of oxo-anions leads to retard a breakdown of passivation and the inhibition of pitting process of tin. The more marked inhibiting effect is obtained in the presence of MoO42− and SiO42−. The detailed study of the influence of the MoO42− shows that the pitting sensitivity of tin decreases when the molybdate concentration increases in solution. Then, these ions offer a good efficiency even at high temperature and for a chloride concentration up to 0.5 M.
Keywords
  • Corrosion,
  • passivation,
  • inhibition,
  • oxo-anions,
  • tin,
  • industrial water
Publication Date
2006
Citation Information
E. Ait Addi, L. Bazzi, M. Hilali, B. Hammouti, et al.. "Effect of the addition of oxo-anions on the corrosion and passivation of tin in synthetic industrial water" Applied Surface Science Vol. 253 (2006)
Available at: http://works.bepress.com/mihit_mohammed/15/