Electrometric investigations on formation of lanthanum molybdates as a function of pH

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv Fed Campina Grande-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorPrasad, S.-
Autor(es): dc.creatorLeite, V. D.-
Autor(es): dc.creatorSantana, RAC de-
Autor(es): dc.creatorBrito, J. B.-
Data de aceite: dc.date.accessioned2022-02-22T00:03:27Z-
Data de disponibilização: dc.date.available2022-02-22T00:03:27Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2004-03-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/194628-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/194628-
Descrição: dc.descriptionThe precise nature of the reaction between lanthanum nitrate and sodium molybdate at specific pH levels 7.6, 5.5 and 4.1 has been studied by means of electrometric techniques involving potentiometric and conductometric titrations, in aqueous and alcoholic media using each reagent as titrant. Well-defined breaks and inflections in the titration curves provide cogent evidence for formation and precipitation of lanthanum normal-La2O3.3MoO(3), para- La2O3.7MoO(3) and octa-2 La2O3.24MoO(3) molybdates in the vicinity of pH 5.9, 4.8 and 4.2, respectively. Analytical investigations of the precipitates of lanthanum molybdates have also been carried out, which substantiate the results of the electrometric study.-
Descrição: dc.descriptionUniv Fed Campina Grande, Ctr Ciencias & Tecnol, Dept Engn Quim, BR-58109970 Campina Grande, PB, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, CCT, Dept Quuim, BR-58100000 Campina Grande, PB, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, CCT, Dept Quuim, BR-58100000 Campina Grande, PB, Brazil-
Formato: dc.format246-252-
Idioma: dc.languageen-
Publicador: dc.publisherSoc Brasileira Quimica-
Relação: dc.relationJournal Of The Brazilian Chemical Society-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectmolybdates-
Palavras-chave: dc.subjectlanthanum molybdates-
Palavras-chave: dc.subjectelectrometry-
Título: dc.titleElectrometric investigations on formation of lanthanum molybdates as a function of pH-
Tipo de arquivo: dc.typelivro digital-
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