Kinetic spectrophotometric method for o-phenylenediamine in the presence of gold(III)

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dc.contributor.authorAltun, Ozlen
dc.contributor.authorAkbas, Halide
dc.contributor.authorDolen, Emre
dc.date.accessioned2024-06-12T11:15:27Z
dc.date.available2024-06-12T11:15:27Z
dc.date.issued2007
dc.departmentTrakya Üniversitesien_US
dc.description.abstractFrom the color developing reactions of o-phenylenediamine oxidizing agent and gold(III), the kinetic reactions between both of them in aquaeous solutions were studied using spectrophotometric and differential method. Light absorbances in the visible spectral range are measured as a function of mole fractions of phenylenediamine at a fixed gold(III) concentration and as a function of mole fraction of gold(III) at a fixed o-phenylenediamine concentration at periodic time internal. In the differential method, which was suggested by van't Hoff, one deals with the actual rates of reactions as determined by measuring the slopes of absorbance-time curves. Optimum condition of the reaction were established as pH 6 at lambda = 466 nm and room temperature. When the oxidation of o-phenylenediamine by gold(III) was investigated, it was observed that the following rate formula and rate constant were found: v = k[Au+3](1/2) [o-phenylenediamine](1/2), k = 2.33 x 10(-2) s(-1) (c) 2006 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.saa.2006.02.065
dc.identifier.endpage502en_US
dc.identifier.issn1386-1425
dc.identifier.issn1873-3557
dc.identifier.issue2en_US
dc.identifier.pmid16859972en_US
dc.identifier.scopus2-s2.0-33845945950en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage499en_US
dc.identifier.urihttps://doi.org/10.1016/j.saa.2006.02.065
dc.identifier.urihttps://hdl.handle.net/20.500.14551/23944
dc.identifier.volume66en_US
dc.identifier.wosWOS:000243775500045en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofSpectrochimica Acta Part A-Molecular And Biomolecular Spectroscopyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpectrophotometryen_US
dc.subjectDifferential Methoden_US
dc.subjectGold(III)en_US
dc.subjectO-Phenylenediamineen_US
dc.subjectReaction Kineticsen_US
dc.subjectOrtho-Substituted Anilinesen_US
dc.subjectGolden_US
dc.subjectManganese(Ii)en_US
dc.subjectOxidationen_US
dc.titleKinetic spectrophotometric method for o-phenylenediamine in the presence of gold(III)en_US
dc.typeArticleen_US

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