Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4

Detalhes bibliográficos
Autor(a) principal: Eddy,N.O.
Data de Publicação: 2010
Outros Autores: Odoemelam,S.A., Ogoko,E.C., Ita,B.I.
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=S0872-19042010000200001
Resumo: Inhibition of the corrosion of zinc in various concentrations of H2SO4 by lincomycin was studied using weight loss and hydrogen evolution methods. The results obtained indicated that lincomycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiencies of lincomycin for the corrosion of zinc in H2SO4 were found to range from 70.90 to 80.32 %, 69.25 to 77.70 % and from 52.11 to 67.49 % at 303, 313 and 323 K, respectively. The inhibition efficiencies decreased with increase in temperature and with increasing concentration of H2SO4 but increased with increase in the concentration of lincomycin. The adsorption of lincomycin on Zn surface is endothermic, spontaneous and is best described by Langmuir adsorption isotherm. Base on the trend in the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies of adsorption, a physical adsorption mechanism is proposed for the adsorption of lincomycin on the surface of zinc.
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spelling Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4corrosioninhibitionZnlincomycinInhibition of the corrosion of zinc in various concentrations of H2SO4 by lincomycin was studied using weight loss and hydrogen evolution methods. The results obtained indicated that lincomycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiencies of lincomycin for the corrosion of zinc in H2SO4 were found to range from 70.90 to 80.32 %, 69.25 to 77.70 % and from 52.11 to 67.49 % at 303, 313 and 323 K, respectively. The inhibition efficiencies decreased with increase in temperature and with increasing concentration of H2SO4 but increased with increase in the concentration of lincomycin. The adsorption of lincomycin on Zn surface is endothermic, spontaneous and is best described by Langmuir adsorption isotherm. Base on the trend in the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies of adsorption, a physical adsorption mechanism is proposed for the adsorption of lincomycin on the surface of zinc.Sociedade Portuguesa de Electroquímica2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000200001Portugaliae Electrochimica Acta v.28 n.2 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=S0872-19042010000200001Eddy,N.O.Odoemelam,S.A.Ogoko,E.C.Ita,B.I.info:eu-repo/semantics/openAccess2024-02-06T17:07:04Zoai:scielo:S0872-19042010000200001Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:08.610627Repositório 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 Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
title Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
spellingShingle Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
Eddy,N.O.
corrosion
inhibition
Zn
lincomycin
title_short Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
title_full Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
title_fullStr Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
title_full_unstemmed Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
title_sort Adsorption and Inhibitive Properties of Lincomycin for the Corrosion of Zinc in 0.01 - 0.05 M H2SO4
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
lincomycin
topic corrosion
inhibition
Zn
lincomycin
description Inhibition of the corrosion of zinc in various concentrations of H2SO4 by lincomycin was studied using weight loss and hydrogen evolution methods. The results obtained indicated that lincomycin is a good adsorption inhibitor for the corrosion of zinc in H2SO4 solutions. The inhibition efficiencies of lincomycin for the corrosion of zinc in H2SO4 were found to range from 70.90 to 80.32 %, 69.25 to 77.70 % and from 52.11 to 67.49 % at 303, 313 and 323 K, respectively. The inhibition efficiencies decreased with increase in temperature and with increasing concentration of H2SO4 but increased with increase in the concentration of lincomycin. The adsorption of lincomycin on Zn surface is endothermic, spontaneous and is best described by Langmuir adsorption isotherm. Base on the trend in the variation of inhibition efficiency with temperature and the calculated values of the activation and free energies of adsorption, a physical adsorption mechanism is proposed for the adsorption of lincomycin on the surface of zinc.
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=S0872-19042010000200001
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000200001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042010000200001
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.2 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
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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
repository.mail.fl_str_mv
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