Sorption model for iron dissolution in inhibited sulfuric acid

T. Horváth, E. Kálmán

Research output: Contribution to journalArticle

Abstract

The unusual behavior of halide ions and some organic additives in acidic solutions during anodic polarization has been observed and reported in the literature. In our paper this behavior is studied on ARMCO iron in 0.5 M H 2SO4 solutions in the presence of iodide ions. Based on an earlier conception, a model is developed for the description of sorption processes during polarization, which allows for the removal of adsorbed inhibitor particles together with the dissolving metal atoms. The effect of the permanently changing metal surface is analyzed to describe the entire polarization process, and as a result, our model is more suitable for the description of measured polarization behavior. The model predicts hysteresis and the fact that the measured polarization curves are strongly dependent on all parameters.

Original languageEnglish
Pages (from-to)225-229
Number of pages5
JournalRussian Journal of Electrochemistry
Volume38
Issue number3
DOIs
Publication statusPublished - Mar 1 2002

ASJC Scopus subject areas

  • Electrochemistry

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