A Contribution to the Estimation of Binary Halide and Pseudo-Halide Equilibrium Constants using a Linear Extrapolation Methodology

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dc.contributor.authorSilva, Astrea F. de S.
dc.contributor.authorOrtega, Manuel M.
dc.contributor.authorMelios, Cristo B. [UNESP]
dc.contributor.authorPezza, Leonardo [UNESP]
dc.contributor.authorde Moraes, Mercedes [UNESP]
dc.contributor.authorTenan, Mario Alberto
dc.contributor.authorOliveira, Andre F.
dc.contributor.institutionUniv Mogi das Cruzes
dc.contributor.institutionUniversidade Federal do Maranhão (UFMA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T14:19:26Z
dc.date.available2014-05-20T14:19:26Z
dc.date.issued2010-01-01
dc.description.abstractThe molar single ion activity coefficient (y(F)) of fluoride ions was determined at 25 degrees C and ionic strengths between 0.100 and 3.00 mol L(-1) NaClO(4) using an ion-selective electrode. The activity coefficient dependency on ionic strength was determined to be Phi(F) = log y(F) = 0.2315I-0.041I(2). The function Phi(F)(I), combined with functions obtained in previous work for copper (Phi(Cu)) and hydrogen (Phi(H)), allowed us to make the estimation of the stoichiometric and thermodynamic protonation constants of some halides and pseudo-halides as well as the formation constants of some pseudo-halides and fluoride 1:1 bivalent cation complexes. The calculation procedure proposed in this paper is consistent with critically-selected experimental data. It was demonstrated that it is possible to use Phi(F)(I) for predicting the thermodynamic equilibrium parameters independently of Pearson's hardness of acids and bases.en
dc.description.affiliationUniv Mogi das Cruzes, Nucleo Ciencias Ambientais, Ctr Civ, BR-08780911 Mogi Das Cruzes, SP, Brazil
dc.description.affiliationUniversidade Federal do Maranhão (UFMA), Dept Quim, BR-65085580 Sao Luis, MA, Brazil
dc.description.affiliationUNESP, Inst Quim, BR-1480970 Araraquara, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-1480970 Araraquara, SP, Brazil
dc.format.extent135-U58
dc.identifierhttp://dx.doi.org/10.1590/S0103-50532010000100020
dc.identifier.citationJournal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 21, n. 1, p. 135-U58, 2010.
dc.identifier.doi10.1590/S0103-50532010000100020
dc.identifier.fileS0103-50532010000100020.pdf
dc.identifier.issn0103-5053
dc.identifier.lattes5978908591853524
dc.identifier.orcid0000-0003-0197-7369
dc.identifier.scieloS0103-50532010000100020
dc.identifier.urihttp://hdl.handle.net/11449/25863
dc.identifier.wosWOS:000275106400019
dc.language.isoeng
dc.publisherSoc Brasileira Quimica
dc.relation.ispartofJournal of the Brazilian Chemical Society
dc.relation.ispartofjcr1.444
dc.relation.ispartofsjr0,357
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectthermodynamic activityen
dc.subjection-selective electrode analysisen
dc.subjectstability constantsen
dc.titleA Contribution to the Estimation of Binary Halide and Pseudo-Halide Equilibrium Constants using a Linear Extrapolation Methodologyen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira Quimica
unesp.author.lattes5978908591853524
unesp.author.orcid0000-0003-0197-7369[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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