Electrometric investigations on the formation of cerium(III) tungstates as a function of PH

Detalhes bibliográficos
Autor(a) principal: PRASAD,Shiva
Data de Publicação: 2000
Outros Autores: BRITO,André Luiz Fiquene de, MUNIZ,Ana Cristina Silva, LEITE,Valderí Duarte
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Eclética Química
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702000000100007
Resumo: The course of reaction between cerium(III) nitrate and different sodium tungstates (Na2WO4, Na10W12O41 and Na6W12O39) has been followed by means of pH and conductometric titrations between the reactants at different pH levels, in aqueous and alcoholic media, with each of the reagents alternatively used as titrant. The electrometric experiments provide definite evidence of the formation of normal-Ce2O3.3WO3 and para- 5Ce2O3.36WO3 tungstates of cerium in the vicinity of pH 6.2 and 5.3. The formation of normal tungstate is almost quantitative and the pH titrations offer a simple means for determination of cerium(III) or tungstate solutions at suitable concentrations and pH range.
id UNESP-29_caaee42a988468cf1a5e0e189b63153a
oai_identifier_str oai:scielo:S0100-46702000000100007
network_acronym_str UNESP-29
network_name_str Eclética Química
repository_id_str
spelling Electrometric investigations on the formation of cerium(III) tungstates as a function of PHTungstatescerium(III)electrometryThe course of reaction between cerium(III) nitrate and different sodium tungstates (Na2WO4, Na10W12O41 and Na6W12O39) has been followed by means of pH and conductometric titrations between the reactants at different pH levels, in aqueous and alcoholic media, with each of the reagents alternatively used as titrant. The electrometric experiments provide definite evidence of the formation of normal-Ce2O3.3WO3 and para- 5Ce2O3.36WO3 tungstates of cerium in the vicinity of pH 6.2 and 5.3. The formation of normal tungstate is almost quantitative and the pH titrations offer a simple means for determination of cerium(III) or tungstate solutions at suitable concentrations and pH range.Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP2000-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702000000100007Eclética Química v.25 2000reponame:Eclética Químicainstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESP10.1590/S0100-46702000000100007info:eu-repo/semantics/openAccessPRASAD,ShivaBRITO,André Luiz Fiquene deMUNIZ,Ana Cristina SilvaLEITE,Valderí Duarteeng2002-11-26T00:00:00Zoai:scielo:S0100-46702000000100007Revistahttp://revista.iq.unesp.br/ojs/index.php/ecletica/PUBhttps://revista.iq.unesp.br/ojs/index.php/ecletica/oaiecletica@ctrlk.com.br||ecletica@iq.unesp.br1678-46181678-4618opendoar:2002-11-26T00:00Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)false
dc.title.none.fl_str_mv Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
title Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
spellingShingle Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
PRASAD,Shiva
Tungstates
cerium(III)
electrometry
title_short Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
title_full Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
title_fullStr Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
title_full_unstemmed Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
title_sort Electrometric investigations on the formation of cerium(III) tungstates as a function of PH
author PRASAD,Shiva
author_facet PRASAD,Shiva
BRITO,André Luiz Fiquene de
MUNIZ,Ana Cristina Silva
LEITE,Valderí Duarte
author_role author
author2 BRITO,André Luiz Fiquene de
MUNIZ,Ana Cristina Silva
LEITE,Valderí Duarte
author2_role author
author
author
dc.contributor.author.fl_str_mv PRASAD,Shiva
BRITO,André Luiz Fiquene de
MUNIZ,Ana Cristina Silva
LEITE,Valderí Duarte
dc.subject.por.fl_str_mv Tungstates
cerium(III)
electrometry
topic Tungstates
cerium(III)
electrometry
description The course of reaction between cerium(III) nitrate and different sodium tungstates (Na2WO4, Na10W12O41 and Na6W12O39) has been followed by means of pH and conductometric titrations between the reactants at different pH levels, in aqueous and alcoholic media, with each of the reagents alternatively used as titrant. The electrometric experiments provide definite evidence of the formation of normal-Ce2O3.3WO3 and para- 5Ce2O3.36WO3 tungstates of cerium in the vicinity of pH 6.2 and 5.3. The formation of normal tungstate is almost quantitative and the pH titrations offer a simple means for determination of cerium(III) or tungstate solutions at suitable concentrations and pH range.
publishDate 2000
dc.date.none.fl_str_mv 2000-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702000000100007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702000000100007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-46702000000100007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
publisher.none.fl_str_mv Fundação Editora da Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP
dc.source.none.fl_str_mv Eclética Química v.25 2000
reponame:Eclética Química
instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Eclética Química
collection Eclética Química
repository.name.fl_str_mv Eclética Química - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
repository.mail.fl_str_mv ecletica@ctrlk.com.br||ecletica@iq.unesp.br
_version_ 1754734617187844096

Registros relacionados