Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/22820
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dc.contributor.authorManjanna, J-
dc.contributor.authorVenkateswaran, G-
dc.date.accessioned2013-10-29T10:04:48Z-
dc.date.available2013-10-29T10:04:48Z-
dc.date.issued2002-01-
dc.identifier.issn0975-0991 (Online); 0971-457X (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/22820-
dc.description25-31en_US
dc.description.abstractThe low oxidation state metal ion, V2+ being a strong reducing agent can be formulated /complexed with suitable chelating agents to obtain a significant dissolution (reductive) of iron oxides, commonly found on the primary system surfaces (iron base alloys) of water-cooled nuclear reactors. The relative strength of the complexes of V2+ (as formate) with different chelating agents, L such as picolinic acid, EDTA and citric acid is studied by measurements of redox potential and UV-Visible spectra. The decay kinetics of the reduction of water by V(II)-picolinate (as a typical case) (V2+ to V3+ conversion) under deaerated condition was estimated using redox potential values and decay was found to follow two stages of first order kinetics with a faster initial stage (k1=3.45×10-3 min-1) and a slower second stage (k2=3.84×10-4 min-1). The cation and anion exchange resin behaviour of the complexes/formulations in their different oxidation states with their derived species is reported and the V(III)-picolinate is shown to exist as an anionic species in formate medium. The use of V(II)-EDTA and V(II)-citrate for dissolution has an advantage as their oxidation (to V(III) stage) at higher concentration ca. > 7mM has not resulted in any precipitation / crystallization unlike in the case of V(II)-picolinate.en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJCT Vol.09(1) [January 2002]en_US
dc.titleStudies on electrolytically generated vanadous complexes used in decontamination formulationsen_US
dc.typeArticleen_US
Appears in Collections:IJCT Vol.09(1) [January 2002]

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