Solubilidade do SrO em NaCl-Kcl fundido a 727ºC

Detalhes bibliográficos
Autor(a) principal: Combes,Richard Louis
Data de Publicação: 2000
Outros Autores: Koeller,Sérgio Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000100008
Resumo: The solubility product value of SrO has been found to be equal to 10-4,2 (molality scale) in molten equimolar mixture of NaCl and KCl at 727ºC, using a potentiometric method involving a calcia stabilized zirconia membrane electrode. This value, which is in a logical agreement with other alkaline-earth oxide determined solubilities, is compared to those of 10-5,8, 10-3,0 and 10-3,08 (molality scale) found in the litterature 33, 22 and 5 years ago, respectively. Such discrepencies have called the attention of the authors, their possible reasons (methodology, titrating agent) are analyzed and a theoretical discussion, for considering the authors' value as more reliable, is given in this paper.
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spelling Solubilidade do SrO em NaCl-Kcl fundido a 727ºCstrontium oxidestabilized zirconiamolten saltsThe solubility product value of SrO has been found to be equal to 10-4,2 (molality scale) in molten equimolar mixture of NaCl and KCl at 727ºC, using a potentiometric method involving a calcia stabilized zirconia membrane electrode. This value, which is in a logical agreement with other alkaline-earth oxide determined solubilities, is compared to those of 10-5,8, 10-3,0 and 10-3,08 (molality scale) found in the litterature 33, 22 and 5 years ago, respectively. Such discrepencies have called the attention of the authors, their possible reasons (methodology, titrating agent) are analyzed and a theoretical discussion, for considering the authors' value as more reliable, is given in this paper.Sociedade Brasileira de Química2000-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000100008Química Nova v.23 n.1 2000reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422000000100008info:eu-repo/semantics/openAccessCombes,Richard LouisKoeller,Sérgio Luizpor2000-10-14T00:00:00Zoai:scielo:S0100-40422000000100008Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2000-10-14T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
title Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
spellingShingle Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
Combes,Richard Louis
strontium oxide
stabilized zirconia
molten salts
title_short Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
title_full Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
title_fullStr Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
title_full_unstemmed Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
title_sort Solubilidade do SrO em NaCl-Kcl fundido a 727ºC
author Combes,Richard Louis
author_facet Combes,Richard Louis
Koeller,Sérgio Luiz
author_role author
author2 Koeller,Sérgio Luiz
author2_role author
dc.contributor.author.fl_str_mv Combes,Richard Louis
Koeller,Sérgio Luiz
dc.subject.por.fl_str_mv strontium oxide
stabilized zirconia
molten salts
topic strontium oxide
stabilized zirconia
molten salts
description The solubility product value of SrO has been found to be equal to 10-4,2 (molality scale) in molten equimolar mixture of NaCl and KCl at 727ºC, using a potentiometric method involving a calcia stabilized zirconia membrane electrode. This value, which is in a logical agreement with other alkaline-earth oxide determined solubilities, is compared to those of 10-5,8, 10-3,0 and 10-3,08 (molality scale) found in the litterature 33, 22 and 5 years ago, respectively. Such discrepencies have called the attention of the authors, their possible reasons (methodology, titrating agent) are analyzed and a theoretical discussion, for considering the authors' value as more reliable, is given in this paper.
publishDate 2000
dc.date.none.fl_str_mv 2000-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000100008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422000000100008
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422000000100008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.23 n.1 2000
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
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instname_str Sociedade Brasileira de Química (SBQ)
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reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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