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Thermal behaviour of mandelic acid, sodium mandelate and its compounds with some bivalent transition metal ions

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dc.contributor.authorGomes, D. J. C. [UNESP]
dc.contributor.authorCaires, Flavio J. [UNESP]
dc.contributor.authorLima, L. S. [UNESP]
dc.contributor.authorGigante, A. C. [UNESP]
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:33:39Z
dc.date.available2014-05-20T15:33:39Z
dc.date.issued2012-04-10
dc.description.abstractCharacterization, thermal stability and thermal decomposition of transition metal mandelates, M(C6H5CH(OH)CO2)(2) (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), as well as the thermal behaviour of mandelic acid C6H5CH(OH)CO2H and its sodium salt were investigated employing simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), TG-DSC coupled to FTIR, infrared spectroscopy (FTIR), elemental analysis and complexometry. All the compounds were obtained in the anhydrous state and the thermal decomposition occurs in two or four consecutive steps. The final residue up to 320 degrees C (Mn), 345 degrees C (Fe), 400 degrees C (Co), 405 degrees C (Ni), 355 degrees C (Cu) and 575 degrees C (Zn) is Mn3O4, Fe2O3, CO3O4, NiO, CuO and ZnO, respectively. The results also provided information concerning the ligand's denticity, thermal behaviour and identification of gaseous products evolved during the thermal decomposition of these compounds. (C) 2012 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent16-21
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2012.01.012
dc.identifier.citationThermochimica Acta. Amsterdam: Elsevier B.V., v. 533, p. 16-21, 2012.
dc.identifier.doi10.1016/j.tca.2012.01.012
dc.identifier.issn0040-6031
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/42217
dc.identifier.wosWOS:000302646000003
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofThermochimica Acta
dc.relation.ispartofjcr2.189
dc.relation.ispartofsjr0,605
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBivalent transition metalsen
dc.subjectMandelateen
dc.subjectThermal decompositionen
dc.subjectTG-FTIRen
dc.subjectEvolved gasesen
dc.titleThermal behaviour of mandelic acid, sodium mandelate and its compounds with some bivalent transition metal ionsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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Araraquara - IQAR - Instituto de Química