Thermal behaviour of malonic acid, sodium malonate and its compounds with some bivalent transition metal ions

dc.contributor.authorCaires, Flavio J. [UNESP]
dc.contributor.authorLima, L. S. [UNESP]
dc.contributor.authorCarvalho, C. T. [UNESP]
dc.contributor.authorGiagio, R. J. [UNESP]
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:30:55Z
dc.date.available2014-05-20T15:30:55Z
dc.date.issued2010-01-10
dc.description.abstractCharacterization, thermal stability and thermal decomposition of transition metal malonates, MCH(2)C(2)O(4)center dot nH(2)O (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II)), as well as, the thermal behaviour of malonic acid (C(3)H(4)O(4)) and its sodium Salt (Na(2)CH(2)C(2)O(4)center dot H(2)O) were investigated employing Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC). infrared spectroscopy, TG-FTIR system, elemental analysis and complexometry. The dehydration, as well as, the thermal decomposition of the anhydrous compounds Occurs in a single step. For the sodium malonate the final residue up to 700 C is sodium carbonate, while the transition metal malonates the final residue up to 335 C (Mn), 400 C (Fe), 340 degrees C (Co), 350 C (Ni), 520 C (Cu) and 450 C (Zn) is Mn(3)O(4), Fe(2)O(3), Co(3)O(4). NiO, CuO and ZnO, respectively. The results also provided information concerning the ligand's denticity, thermal behaviour and identification of some gaseous products evolved during the thermal decomposition of these compounds. (C) 2009 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.description.sponsorshipBZG
dc.format.extent35-40
dc.identifierhttp://dx.doi.org/10.1016/j.tca.2009.08.013
dc.identifier.citationThermochimica Acta. Amsterdam: Elsevier B.V., v. 497, n. 1-2, p. 35-40, 2010.
dc.identifier.doi10.1016/j.tca.2009.08.013
dc.identifier.issn0040-6031
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/40206
dc.identifier.wosWOS:000274859700006
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.subjectMalonatesen
dc.subjectThermal behaviouren
dc.titleThermal behaviour of malonic acid, sodium malonate 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.
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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