Thermoanalytical characterization of neodymium peroxicarbonate

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dc.contributor.authorQUEIROZ, C.A.S.pt_BR
dc.contributor.authorMATOS, J.R.pt_BR
dc.contributor.authorVASCONCELLOS, M.E.pt_BR
dc.contributor.authorABRAO, A.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoRARE EARTHS'2001pt_BR
dc.date.accessioned2014-11-17T18:11:51Zpt_BR
dc.date.accessioned2014-11-18T18:07:20Zpt_BR
dc.date.accessioned2015-04-02T06:17:53Z
dc.date.available2014-11-17T18:11:51Zpt_BR
dc.date.available2014-11-18T18:07:20Zpt_BR
dc.date.available2015-04-02T06:17:53Z
dc.date.eventoSept. 22-26, 2001pt_BR
dc.description.abstractThis paper presents the data collected for the neodymium peroxicarbonate by thermogravimetry (TG)–differential thermogravimetry (DTG), active oxygen determination via iodine generation and total oxide content by gravimetry and elementary analysis of CHN by microanalyses. By thermal analysis (DTG) a mass loss corresponding to volatile components and water, equivalent to 27.65% of the total mass was observed. This value is in accordance with the mass loss of the compound when it was fired at 900 °C toward the Nd2O3 oxide. With the DTG program a process of thermodecomposition in multisteps, was observed, corresponding to the loss of water (up to 250 °C), evolution of oxygen gas from the peroxide compound and a partial decomposition to CO2 (250 to 600 °C) and a second evolution of CO2 (from 600 to 900 °C). This final evolution of CO2 probably came from the intermediary compound Nd2O2CO3. By microanalyses the carbon and hydrogen contents were 4.8 and 1.0%, respectively. In summary, the analytical data collected allowed one to conclude that the stoichiometric formula for the studied compound is Nd2O2(CO3)2·2H2O.
dc.format.extent32-35pt_BR
dc.identifier.citationQUEIROZ, C.A.S.; MATOS, J.R.; VASCONCELLOS, M.E.; ABRAO, A. Thermoanalytical characterization of neodymium peroxicarbonate. In: RARE EARTHS'2001, Sept. 22-26, 2001, Campos do Jordao, SP. <b>Proceedings...</b> p. 32-35. DOI: <a href="https://dx.doi.org/10.1016/S0925-8388(02)00300-6">10.1016/S0925-8388(02)00300-6</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/16302.
dc.identifier.doi10.1016/S0925-8388(02)00300-6
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/16302pt_BR
dc.local.eventoCampos do Jordao, SPpt_BR
dc.rightsopenAccesspt_BR
dc.sourcePublicado em: J. Alloys Compd., , v. 344, n. 1/2, p. 32-35, 2002pt_BR
dc.subjectperoxidespt_BR
dc.subjectneodymium compoundspt_BR
dc.subjectneodymium carbonatespt_BR
dc.subjectchemical analysispt_BR
dc.subjectstoichiometrypt_BR
dc.subjectmicroanalysispt_BR
dc.subjectinfrared spectrapt_BR
dc.subjectthermal analysispt_BR
dc.titleThermoanalytical characterization of neodymium peroxicarbonatept_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorALCIDIO ABRAO
ipen.autorMARI ESTELA DE VASCONCELLOS
ipen.autorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.codigoautor596
ipen.codigoautor497
ipen.codigoautor1185
ipen.contributor.ipenauthorALCIDIO ABRAO
ipen.contributor.ipenauthorMARI ESTELA DE VASCONCELLOS
ipen.contributor.ipenauthorCARLOS ALBERTO DA SILVA QUEIROZ
ipen.date.recebimento03-03pt_BR
ipen.event.datapadronizada2001pt_BR
ipen.identifier.ipendoc08605pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication2d55ca6f-adb8-4016-be6c-312d216f5914
relation.isAuthorOfPublication31dd8a7a-10b1-4b18-a132-0d4776cf0525
relation.isAuthorOfPublication6102a3fb-2aa8-40d1-ab9a-14642b733e55
relation.isAuthorOfPublication.latestForDiscovery6102a3fb-2aa8-40d1-ab9a-14642b733e55
sigepi.autor.atividadeQUEIROZ, C.A.S.:1185:-1:Spt_BR
sigepi.autor.atividadeVASCONCELLOS, M.E.:497:-1:Npt_BR
sigepi.autor.atividadeABRAO, A.:596:-1:Npt_BR
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