Optimization of the operative conditions for heteropolyacids synthesis through ion exchange

Detalhes bibliográficos
Autor(a) principal: Matkovic,Silvana Raquel
Data de Publicação: 2005
Outros Autores: Valle,Graciela Manuela, Briand,Laura Estefania
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300022
Resumo: Phospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H6P2W18O62 .xH2O and H6P2Mo18O62 .xH2O respectively, were synthesized through ion exchange with a higher yield (~ 90%) than the conventional organic route (~ 70%). Pure, non-degraded heteropolyacids are obtained when the corresponding ammonium salt [(NH4)6P2W18 O62.13H2O or (NH4)6P2Mo18 O62.12H2O] is kept in contact with an acid resin [about (1:0.8) salt:resin weight ratio] up to three days. The use of an organic media instead of an aqueous media greatly favors the completeness of the exchange.
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spelling Optimization of the operative conditions for heteropolyacids synthesis through ion exchangeWells-DawsonheteropolyacidPOMHPAPhospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H6P2W18O62 .xH2O and H6P2Mo18O62 .xH2O respectively, were synthesized through ion exchange with a higher yield (~ 90%) than the conventional organic route (~ 70%). Pure, non-degraded heteropolyacids are obtained when the corresponding ammonium salt [(NH4)6P2W18 O62.13H2O or (NH4)6P2Mo18 O62.12H2O] is kept in contact with an acid resin [about (1:0.8) salt:resin weight ratio] up to three days. The use of an organic media instead of an aqueous media greatly favors the completeness of the exchange.ABM, ABC, ABPol2005-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300022Materials Research v.8 n.3 2005reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392005000300022info:eu-repo/semantics/openAccessMatkovic,Silvana RaquelValle,Graciela ManuelaBriand,Laura Estefaniaeng2005-10-10T00:00:00Zoai:scielo:S1516-14392005000300022Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2005-10-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
spellingShingle Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
Matkovic,Silvana Raquel
Wells-Dawson
heteropolyacid
POM
HPA
title_short Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_full Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_fullStr Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_full_unstemmed Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
title_sort Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
author Matkovic,Silvana Raquel
author_facet Matkovic,Silvana Raquel
Valle,Graciela Manuela
Briand,Laura Estefania
author_role author
author2 Valle,Graciela Manuela
Briand,Laura Estefania
author2_role author
author
dc.contributor.author.fl_str_mv Matkovic,Silvana Raquel
Valle,Graciela Manuela
Briand,Laura Estefania
dc.subject.por.fl_str_mv Wells-Dawson
heteropolyacid
POM
HPA
topic Wells-Dawson
heteropolyacid
POM
HPA
description Phospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H6P2W18O62 .xH2O and H6P2Mo18O62 .xH2O respectively, were synthesized through ion exchange with a higher yield (~ 90%) than the conventional organic route (~ 70%). Pure, non-degraded heteropolyacids are obtained when the corresponding ammonium salt [(NH4)6P2W18 O62.13H2O or (NH4)6P2Mo18 O62.12H2O] is kept in contact with an acid resin [about (1:0.8) salt:resin weight ratio] up to three days. The use of an organic media instead of an aqueous media greatly favors the completeness of the exchange.
publishDate 2005
dc.date.none.fl_str_mv 2005-09-01
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=S1516-14392005000300022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000300022
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392005000300022
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.8 n.3 2005
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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