Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002 |
Resumo: | Inhibition of the corrosion of zinc in 0.01 to 0.0 4 M H2SO4 by erythromycin was studied using weight loss and hydrogen evolution methods. The results obtained indicate that erythromycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiency of erythromycin increases with increasing concentration but decreases with increase in temperature. Thermodynamic and adsorption studies reveal that the adsorption of erythromycin on zinc surface is exothermic, spontaneous and is characterised with increasing degree of orderliness. The adsorption characteristics of the inhibitor are best described by the Langmuir adsorption model. From the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies (which are within the limits expected for physical adsorption), we propose that the adsorption of erythromycin on zinc surface is consistent with the mechanism of physical adsorption. |
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Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycincorrosion inhibitionZn, H2SO4erythromycinInhibition of the corrosion of zinc in 0.01 to 0.0 4 M H2SO4 by erythromycin was studied using weight loss and hydrogen evolution methods. The results obtained indicate that erythromycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiency of erythromycin increases with increasing concentration but decreases with increase in temperature. Thermodynamic and adsorption studies reveal that the adsorption of erythromycin on zinc surface is exothermic, spontaneous and is characterised with increasing degree of orderliness. The adsorption characteristics of the inhibitor are best described by the Langmuir adsorption model. From the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies (which are within the limits expected for physical adsorption), we propose that the adsorption of erythromycin on zinc surface is consistent with the mechanism of physical adsorption.Sociedade Portuguesa de Electroquímica2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002Portugaliae Electrochimica Acta v.28 n.1 2010reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002Eddy,N.O.Odoemelam,S.A.Ogoko,E.C.Ita,B.I.info:eu-repo/semantics/openAccess2024-02-06T17:07:03Zoai:scielo:S0872-19042010000100002Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:08.380334Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
title |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
spellingShingle |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin Eddy,N.O. corrosion inhibition Zn, H2SO4 erythromycin |
title_short |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
title_full |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
title_fullStr |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
title_full_unstemmed |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
title_sort |
Inhibition of the Corrosion of Zinc in 0.01 - 0.04 M H2SO4 by Erythromycin |
author |
Eddy,N.O. |
author_facet |
Eddy,N.O. Odoemelam,S.A. Ogoko,E.C. Ita,B.I. |
author_role |
author |
author2 |
Odoemelam,S.A. Ogoko,E.C. Ita,B.I. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Eddy,N.O. Odoemelam,S.A. Ogoko,E.C. Ita,B.I. |
dc.subject.por.fl_str_mv |
corrosion inhibition Zn, H2SO4 erythromycin |
topic |
corrosion inhibition Zn, H2SO4 erythromycin |
description |
Inhibition of the corrosion of zinc in 0.01 to 0.0 4 M H2SO4 by erythromycin was studied using weight loss and hydrogen evolution methods. The results obtained indicate that erythromycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiency of erythromycin increases with increasing concentration but decreases with increase in temperature. Thermodynamic and adsorption studies reveal that the adsorption of erythromycin on zinc surface is exothermic, spontaneous and is characterised with increasing degree of orderliness. The adsorption characteristics of the inhibitor are best described by the Langmuir adsorption model. From the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies (which are within the limits expected for physical adsorption), we propose that the adsorption of erythromycin on zinc surface is consistent with the mechanism of physical adsorption. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000100002 |
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 Portuguesa de Electroquímica |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
dc.source.none.fl_str_mv |
Portugaliae Electrochimica Acta v.28 n.1 2010 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137290359930880 |