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Tryptamine as a corrosion inhibitor of mild steel in hydrochloric acid solution

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dc.contributor.authorPongsak Lowmunkhongen_US
dc.contributor.authorDusit Ungthararaken_US
dc.contributor.authorPakawadee Sutthivaiyakiten_US
dc.contributor.otherMahidol Universityen_US
dc.date.accessioned2018-09-24T08:52:03Z
dc.date.available2018-09-24T08:52:03Z
dc.date.issued2010-01-01en_US
dc.description.abstractThe inhibitor effect of tryptamine on the corrosion of mild steel in 0.5 M hydrochloric acid at 30 °C was investigated using linear polarization, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency increases with an increase in concentration of tryptamine. At 500 ppm tryptamine the inhibition efficiency calculated by these techniques is around 97%. Cathodic and anodic polarization curves of mild steel in the presence of different concentrations of tryptamine at 30 °C reveal that it is a mixed type inhibitor. Tryptamine follows Langmuir adsorption with adsorption free energy of -35.07 kJ mol-1. © 2009 Elsevier Ltd. All rights reserved.en_US
dc.identifier.citationCorrosion Science. Vol.52, No.1 (2010), 30-36en_US
dc.identifier.doi10.1016/j.corsci.2009.08.039en_US
dc.identifier.issn0010938Xen_US
dc.identifier.other2-s2.0-74249109338en_US
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/123456789/28906
dc.rightsMahidol Universityen_US
dc.rights.holderSCOPUSen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=74249109338&origin=inwarden_US
dc.subjectChemical Engineeringen_US
dc.subjectChemistryen_US
dc.subjectMaterials Scienceen_US
dc.titleTryptamine as a corrosion inhibitor of mild steel in hydrochloric acid solutionen_US
dc.typeArticleen_US
dspace.entity.typePublication
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=74249109338&origin=inwarden_US

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