journal article·2019-07

Dissolution of corrosion product oxides relevant to nuclear power plants in formulations containing chromous complexes

A.L. Rufus, V.S. Sathyaseelan, E. Pavithra, S. Velmurugan

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Abstract

Abstract Reductive dissolution of corrosion product oxides relevant to nuclear power plants such as haematite (Fe2O3), nickel ferrite (NiFe2O4), iron chromite (FeCr2O4) and mixed oxides (NiFe2-xCrxO4; x = 0.4, 0.8, 1.2 and 1.6) were carried out in ethylene diamine tetra acetic acid (EDTA) and nitrilo tri acetic acid (NTA) based chemical formulations. Of all the reducing agents investigated, Cr(II)-complexes were found to be effective in dissolving these oxides. The results showed no preferential dissolution of a metal ion from the oxide lattice and the rate of dissolution was influenced by the concentration of Cr(II)-complex in solution, chromium content in the oxide lattice and pH of the formulation.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Radioactive element chemistry and processing · Nuclear Materials and Properties · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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