Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1

Detalhes bibliográficos
Autor(a) principal: Torres,Vanessa V.
Data de Publicação: 2016
Outros Autores: Cabral,Gabriela Borges, Silva,Ana Carolina Gomes da, Ferreira,Kelly Cristina Ribeiro, D'Elia,Eliane
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400423
Resumo: The effect of two papaya seed extracts (infusion and acid extracts) on the corrosion of carbon steel in 1 mol L-1 HCl was examined. The efficiency for inhibiting the corrosion of C-steel in 1 mol L-1 HCl increased with the extract concentration and decreased slightly with the temperature. The inhibitory property of the extract is discussed in terms of the mechanism by which its components adsorb onto the C-steel surface decreasing the active surface area. This adsorption process obeyed a Langmuir adsorption isotherm. The infusion extract which presented more phenolic compounds than the acid extract showed higher inhibition efficiency. The apparent activation energy (Ea) for the dissolution of C-steel slightly increased when the infusion extract was used.
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spelling Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1carbon steelEISpolarizationweight loss measurementsacid inhibitionThe effect of two papaya seed extracts (infusion and acid extracts) on the corrosion of carbon steel in 1 mol L-1 HCl was examined. The efficiency for inhibiting the corrosion of C-steel in 1 mol L-1 HCl increased with the extract concentration and decreased slightly with the temperature. The inhibitory property of the extract is discussed in terms of the mechanism by which its components adsorb onto the C-steel surface decreasing the active surface area. This adsorption process obeyed a Langmuir adsorption isotherm. The infusion extract which presented more phenolic compounds than the acid extract showed higher inhibition efficiency. The apparent activation energy (Ea) for the dissolution of C-steel slightly increased when the infusion extract was used.Sociedade Brasileira de Química2016-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400423Química Nova v.39 n.4 2016reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0100-4042.20160046info:eu-repo/semantics/openAccessTorres,Vanessa V.Cabral,Gabriela BorgesSilva,Ana Carolina Gomes daFerreira,Kelly Cristina RibeiroD'Elia,Elianepor2016-05-25T00:00:00Zoai:scielo:S0100-40422016000400423Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2016-05-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
title Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
spellingShingle Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
Torres,Vanessa V.
carbon steel
EIS
polarization
weight loss measurements
acid inhibition
title_short Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
title_full Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
title_fullStr Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
title_full_unstemmed Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
title_sort Ação inibidora de extratos da semente do mamão papaia na corrosão do aço-carbono 1020 em HCL 1 mol L-1
author Torres,Vanessa V.
author_facet Torres,Vanessa V.
Cabral,Gabriela Borges
Silva,Ana Carolina Gomes da
Ferreira,Kelly Cristina Ribeiro
D'Elia,Eliane
author_role author
author2 Cabral,Gabriela Borges
Silva,Ana Carolina Gomes da
Ferreira,Kelly Cristina Ribeiro
D'Elia,Eliane
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Torres,Vanessa V.
Cabral,Gabriela Borges
Silva,Ana Carolina Gomes da
Ferreira,Kelly Cristina Ribeiro
D'Elia,Eliane
dc.subject.por.fl_str_mv carbon steel
EIS
polarization
weight loss measurements
acid inhibition
topic carbon steel
EIS
polarization
weight loss measurements
acid inhibition
description The effect of two papaya seed extracts (infusion and acid extracts) on the corrosion of carbon steel in 1 mol L-1 HCl was examined. The efficiency for inhibiting the corrosion of C-steel in 1 mol L-1 HCl increased with the extract concentration and decreased slightly with the temperature. The inhibitory property of the extract is discussed in terms of the mechanism by which its components adsorb onto the C-steel surface decreasing the active surface area. This adsorption process obeyed a Langmuir adsorption isotherm. The infusion extract which presented more phenolic compounds than the acid extract showed higher inhibition efficiency. The apparent activation energy (Ea) for the dissolution of C-steel slightly increased when the infusion extract was used.
publishDate 2016
dc.date.none.fl_str_mv 2016-05-01
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=S0100-40422016000400423
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422016000400423
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.5935/0100-4042.20160046
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 Química Nova v.39 n.4 2016
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
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
_version_ 1750318117489213440

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