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

dc.contributorUniv Fed Campina Grande
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-10T16:32:20Z
dc.date.accessioned2022-12-19T19:54:36Z
dc.date.available2020-12-10T16:32:20Z
dc.date.available2022-12-19T19:54:36Z
dc.date.created2020-12-10T16:32:20Z
dc.date.issued2004-03-01
dc.identifierJournal Of The Brazilian Chemical Society. Sao Paulo: Soc Brasileira Quimica, v. 15, n. 2, p. 246-252, 2004.
dc.identifier0103-5053
dc.identifierhttp://hdl.handle.net/11449/194628
dc.identifierWOS:000221603000013
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5375264
dc.description.abstractThe 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.
dc.languageeng
dc.publisherSoc Brasileira Quimica
dc.relationJournal Of The Brazilian Chemical Society
dc.sourceWeb of Science
dc.subjectmolybdates
dc.subjectlanthanum molybdates
dc.subjectelectrometry
dc.titleElectrometric investigations on formation of lanthanum molybdates as a function of pH
dc.typeArtículos de revistas


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