Corrosion inhibition of copper in chloride media by 1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methylpyrazolyl)pentane

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dc.contributor.authorVera, Rosa
dc.contributor.authorBastidas, Francisco
dc.contributor.authorVillarroel, Maria
dc.contributor.authorOliva, Alfonso
dc.contributor.authorMolinari, Aurora
dc.contributor.authorRamirez, Daniel
dc.contributor.authordel Rio, Rodrigo
dc.date.accessioned2024-01-10T13:12:03Z
dc.date.available2024-01-10T13:12:03Z
dc.date.issued2008
dc.description.abstractThe efficiency of 1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methyl-pyrazolyl)pentane (BDTCPP) as copper corrosion inhibitor in 3.5% NaCl solutions was studied by electrochemical polarization methods (Tafel extrapolation and polarization resistance method), electrochemical impedance spectroscopy and immersion assays. Results obtained in this study reveal that BDTCPP is a good inhibitor and the potentiodynamic polarization studies clearly show that BDTCPP is a mixed-type inhibitor for copper in chloride solutions. It decreases the anodic reaction rate more strongly than the cathodic reaction rate and it renders the open circuit potential of copper more positive in 3.5% NaCl solutions. The UV analysis of the protective layer of BDTCPP after corrosion experiments shows that the inhibitor prevents copper corrosion by physisorption on the metal surface, followed by chemisorption of a protective Cu(II)-complex. This Cu(II) is generated by oxidation of the Cu(I) ion formed at the beginning of the corrosion process in the aerated solution of NaCl. (C) 2007 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital2024-04-02
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.corsci.2007.10.004
dc.identifier.issn0010-938X
dc.identifier.urihttps://doi.org/10.1016/j.corsci.2007.10.004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78133
dc.identifier.wosidWOS:000254665500012
dc.information.autorucQuímica;Del Río R;S/I;1005788
dc.issue.numero3
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final736
dc.pagina.inicio729
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaCORROSION SCIENCE
dc.rightsacceso restringido
dc.subjectcopper
dc.subjectchloride solution
dc.subject1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methylpyrazolyl)pentane
dc.subjectcorrosion inhibition
dc.subjectHYDROCHLORIC-ACID SOLUTION
dc.subjectSULFURIC-ACID
dc.subjectPROTECTIVE PROPERTIES
dc.subjectDERIVATIVES
dc.subjectBENZOTRIAZOLE
dc.subjectSURFACTANTS
dc.subjectELECTRODISSOLUTION
dc.subjectEXTRACTION
dc.subjectIMPEDANCE
dc.subjectPATINAS
dc.titleCorrosion inhibition of copper in chloride media by 1,5-bis(4-dithiocarboxylate-1-dodecyl-5-hydroxy-3-methylpyrazolyl)pentane
dc.typeartículo
dc.volumen50
sipa.codpersvinculados1005788
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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