Thermal study in solid state of Zn(II)-diclofenac complex: Behavior kinetic of dehydration, transition phase and thermal decomposition

dc.contributor.authorKobelnik, Marcelo [UNESP]
dc.contributor.authorQuarcioni, Valdecir Ângelo
dc.contributor.authorRibeiro, Clovis Augusto [UNESP]
dc.contributor.authorCapela, Jorge Manuel Vieira [UNESP]
dc.contributor.authorDias, Diogines dos Santos [UNESP]
dc.contributor.authorCrespi, Marisa Spirandeli [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto de Pesquisas Tecnológicas (IPT)
dc.date.accessioned2015-05-15T13:30:18Z
dc.date.available2015-05-15T13:30:18Z
dc.date.issued2010
dc.description.abstractThe dehydration, thermal decomposition and transition phase stage of Zn(II)-diclofenac compoundwere studied by simultaneous TG-DTA and DSC techniques. The TG and DSC curves of this compoundwere obtained with the mass of sample of 2 and 5 mg. Additionally, DSC curves were carried out inopened and closed a-alumina pans under static and nitrogen atmosphere. The DTA and DSC curves showthat this compound possesses exothermic transition phase between 170-180 ºC, which it is irreversible(monotropic reaction). The kinetics study of this transition phase stage was evaluated by DSC undernon-isothermal conditions. The obtained data were evaluated with the isoconversional method, where thevalues of activation energy (Ea/kJmol-1) was plotted in function of the conversion degree (a). The resultsshow that due to mass sample, different activation energies were obtained. From these curves a tendencycan be seen where the plots maintain the same profile for closed lids and almost run parallel to each other.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Físico-Química, Instituto de Química de Araraquara, Araraquara, Rua Prof. Francisco Degni, no. 55, Quitandinha, CEP 14801-970, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Instituto de Biociências, Letras e Ciências Exatas de São José do Rio Preto
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Físico-Química, Instituto de Química de Araraquara
dc.format.extent384-390
dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/jccs.201000057/abstract
dc.identifier.citationJournal of the Chinese Chemical Society, v. 57, n. 3A, p. 384-390, 2010.
dc.identifier.doi10.1002/jccs.201000057
dc.identifier.issn0009-4536
dc.identifier.lattes8498310891810082
dc.identifier.lattes8087755201222731
dc.identifier.lattes4457973246553642
dc.identifier.lattes7471310113999140
dc.identifier.orcid0000-0002-7984-5908
dc.identifier.urihttp://hdl.handle.net/11449/123495
dc.language.isoeng
dc.relation.ispartofJournal of the Chinese Chemical Society
dc.relation.ispartofjcr0.862
dc.relation.ispartofsjr0,261
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectZn(II)-diclofenac complexen
dc.subjectThermal behavioren
dc.subjectTransition phaseen
dc.subjectKineticen
dc.titleThermal study in solid state of Zn(II)-diclofenac complex: Behavior kinetic of dehydration, transition phase and thermal decompositionen
dc.typeArtigo
unesp.author.lattes8087755201222731
unesp.author.lattes4457973246553642
unesp.author.lattes7471310113999140
unesp.author.lattes8498310891810082[3]
unesp.author.orcid0000-0002-7984-5908[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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