Synthesis, characterization, and thermal study of solid-state alkaline earth metal mandelates, except beryllium and radium

Página do item simplificado
dc.contributor.authorSilva, R. C. [UNESP]
dc.contributor.authorCaires, F. J. [UNESP]
dc.contributor.authorGomes, D. J. C. [UNESP]
dc.contributor.authorColman, T. A. D. [UNESP]
dc.contributor.authorIonashiro, Massao [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:08:39Z
dc.date.available2014-12-03T13:08:39Z
dc.date.issued2014-07-01
dc.description.abstractCharacterization, thermal stability, and thermal decomposition of alkaline earth metal mandelates, M(C6H5CH(OH)CO2)(2), (M = Mg(II), Ca(II), Sr(II), and Ba(II)), were investigated employing simultaneous thermogravimetry and differential thermal analysis or differential scanning calorimetry, (TG-DTA or TG-DSC), infrared spectroscopy (FTIR), complexometry, and TG-DSC coupled to FTIR. All the compounds were obtained in the anhydrous state and the thermal decomposition occurs in three steps. The final residue up to 585 A degrees C (Mg), 720 A degrees C (Ca), and 945 A degrees C (Sr) is the respective oxide MgO, CaO, and SrO. For the barium compound the final residue up to 580 A degrees C is BaCO3, which is stable until 950 A degrees C and above this temperature the TG curve shows the beginning of the thermal decomposition of the barium carbonate. The results also provide information concerning the thermal behavior and identification of gaseous products evolved during the thermal decomposition of these compounds.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.extent217-221
dc.identifierhttp://dx.doi.org/10.1007/s10973-014-3694-6
dc.identifier.citationJournal Of Thermal Analysis And Calorimetry. Dordrecht: Springer, v. 117, n. 1, p. 217-221, 2014.
dc.identifier.doi10.1007/s10973-014-3694-6
dc.identifier.issn1388-6150
dc.identifier.lattes8460531302083773
dc.identifier.urihttp://hdl.handle.net/11449/111438
dc.identifier.wosWOS:000338120100023
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.ispartofjcr2.209
dc.relation.ispartofsjr0,587
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAlkaline earth metalsen
dc.subjectMandelateen
dc.subjectThermal behavioren
dc.subjectTG-FTIRen
dc.subjectEvolved gasesen
dc.titleSynthesis, characterization, and thermal study of solid-state alkaline earth metal mandelates, except beryllium and radiumen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes8460531302083773
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

Arquivos

Coleções

Artigos - Química Analítica - IQ