On the reduction of CIO-4 ions in the course of metal dissolution in HClO4 solutions

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The problem of the application of perchloric acid and/or perchlorate supporting electrolyte in electrochemical and corrosion studies is discussed. It is demonstrated that in contrast to the general view in the literature the reduction of perchlorate ions could be an important step in the overall process occurring in the course of spontaneous dissolution of some metals in acid perchlorate medium. It is shown that especially in the case of the dissolution of iron the reduction of ClO4- leading to the formation of C1- plays a substantial role. Consequently, all interpretations concerning the dissolution of iron in the presence of C1O4- ions should be revisited taking into consideration the possibility of the reduction process.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalCorrosion Science
Issue number1
Publication statusPublished - Jan 2003



  • Corrosion
  • Iron
  • Metals
  • Perchloric acid
  • Reduction

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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