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Title: | Study of inhibition properties of some thiazole derivatives against copper corrosion | Authors: | Vaštag, Đenđi Shaban Abdul Felhősi I Kálmán E |
Keywords: | inhibitors, corrosion, copper properties | Issue Date: | 2012 | Journal: | Zaštita materijala | Abstract: | The inhibitor efficiency of some thiazole derivatives against copper corrosion in acidic sulfate solutionwere investigated using polarization and electrochemical impedance spectroscopy (EIS) methods.Protection efficiency of four organic molecules: 5-benzylidene-2,4-dioxotetrahydro-1,3-thiazole (5-BDT), 5-(4′-isopropylbenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (5-IPBDT), 5-(3′-thenylidene)-2,4-dioxotetrahydro-1,3-thiazole (5-TDT) and 5-(3′,4′-dimetoxybenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (5-MBDT) were investigated on copper electrode in 0.1moldm–3 Na2SO4 solution at pH=2.95.Polarization measurements indicates that all investigated thiazole derivatives could reduces thecathodic reaction rate on copper electrode surface in 0.1 mol dm–3 acidic Na2SO4 solution. Ininvestigation range concentration 0.01mmoldm-3 has the best inhibitor efficiency in case of allinvestigated thiazole. The best protection is obtained in presence of 5-IPBDT derivatives. EIS resultsshowed that investigated thiazole derivatives formed a film on copper surface which was able toprotect copper against corrosion in acidic media. 5-IPBDT derivative only formed closely packedinhibitor film, which is able to protect copper surface during the time. | URI: | https://open.uns.ac.rs/handle/123456789/28138 | ISSN: | 0351-9465 | DOI: | (BISIS)82305 |
Appears in Collections: | PMF Publikacije/Publications |
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