Understanding the induction period of the Belousov-Zhabotinsky reaction

Detalhes bibliográficos
Autor(a) principal: Cadena,Ariel
Data de Publicação: 2005
Outros Autores: Pérez,Néstor, Ágreda,Jesús A., Barragán,Daniel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200014
Resumo: In this paper we present the dependence of the induction time of the Belousov-Zhabotinsky reaction (BZ) on the initial concentrations of malonic acid, bromate and cerium. The experimental results show that the induction time gets larger with bromate increasing and this behaviour does not agree with the mechanistic explanations based on the models proposed for the BZ reaction. We propose that a kinetic competition between the bromination of malonic acid and the oxidation of bromomalonic and malonic acids is a way to understand this behaviour. Model calculations using the GTF and MBM models support the propose explanation.
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spelling Understanding the induction period of the Belousov-Zhabotinsky reactionInduction periodBelousov-Zhabotinsky reactionoscillating chemical reactionsIn this paper we present the dependence of the induction time of the Belousov-Zhabotinsky reaction (BZ) on the initial concentrations of malonic acid, bromate and cerium. The experimental results show that the induction time gets larger with bromate increasing and this behaviour does not agree with the mechanistic explanations based on the models proposed for the BZ reaction. We propose that a kinetic competition between the bromination of malonic acid and the oxidation of bromomalonic and malonic acids is a way to understand this behaviour. Model calculations using the GTF and MBM models support the propose explanation.Sociedade Brasileira de Química2005-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200014Journal of the Brazilian Chemical Society v.16 n.2 2005reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532005000200014info:eu-repo/semantics/openAccessCadena,ArielPérez,NéstorÁgreda,Jesús A.Barragán,Danieleng2005-05-24T00:00:00Zoai:scielo:S0103-50532005000200014Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2005-05-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Understanding the induction period of the Belousov-Zhabotinsky reaction
title Understanding the induction period of the Belousov-Zhabotinsky reaction
spellingShingle Understanding the induction period of the Belousov-Zhabotinsky reaction
Cadena,Ariel
Induction period
Belousov-Zhabotinsky reaction
oscillating chemical reactions
title_short Understanding the induction period of the Belousov-Zhabotinsky reaction
title_full Understanding the induction period of the Belousov-Zhabotinsky reaction
title_fullStr Understanding the induction period of the Belousov-Zhabotinsky reaction
title_full_unstemmed Understanding the induction period of the Belousov-Zhabotinsky reaction
title_sort Understanding the induction period of the Belousov-Zhabotinsky reaction
author Cadena,Ariel
author_facet Cadena,Ariel
Pérez,Néstor
Ágreda,Jesús A.
Barragán,Daniel
author_role author
author2 Pérez,Néstor
Ágreda,Jesús A.
Barragán,Daniel
author2_role author
author
author
dc.contributor.author.fl_str_mv Cadena,Ariel
Pérez,Néstor
Ágreda,Jesús A.
Barragán,Daniel
dc.subject.por.fl_str_mv Induction period
Belousov-Zhabotinsky reaction
oscillating chemical reactions
topic Induction period
Belousov-Zhabotinsky reaction
oscillating chemical reactions
description In this paper we present the dependence of the induction time of the Belousov-Zhabotinsky reaction (BZ) on the initial concentrations of malonic acid, bromate and cerium. The experimental results show that the induction time gets larger with bromate increasing and this behaviour does not agree with the mechanistic explanations based on the models proposed for the BZ reaction. We propose that a kinetic competition between the bromination of malonic acid and the oxidation of bromomalonic and malonic acids is a way to understand this behaviour. Model calculations using the GTF and MBM models support the propose explanation.
publishDate 2005
dc.date.none.fl_str_mv 2005-04-01
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=S0103-50532005000200014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000200014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532005000200014
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.16 n.2 2005
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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