This chapter presents a study on the electrochemical aspects of the behavior of perchlorate ions in the presence of iron group metals. In this study, analytical grade Fe, Ni, and Co metal powders, and metal chips (Aldrich) were used for radiotracer adsorption studies. For analytical measurements, Fe, Co, and Ni foils and rods are used for the corrosion potential measurements. Fresh bottles of reagent grade perchloric acid, and "Millipore" grade water was used to prepare all solutions. For the preparation of solutions containing sodium perchlorate reagent grade perchloric acid, and "Suprapur" sodium-hydroxide monohydrate or sodium perchlorate monohydrate was used. The study demonstrates that the mechanical properties of the passive layer on nickel are influenced by the presence of CI- ions. Thus it can be assumed, that chloride ions incorporated in the passive film facilitate the formation of a more ordered structure.
ASJC Scopus subject areas
- Chemical Engineering(all)