Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin
AbstractA new coumarin derivative, N,N′-((2E,2′E)-2,2′-(1,4-phenylenebis (methanylylidene))bis(hydrazinecarbonothioyl))bis(2-oxo-2H-chromene-3-carboxamide) PMBH, was synthesized and its chemical structure was elucidated and confirmed using spectroscopic techniques (Infrared spectroscopy IR, Proton nuclear magnetic resonance, 1H-NMR and carbon-13 nuclear magnetic resonance 13C-NMR). The corrosion inhibition effect of PMBH on mild steel in 1.0 M HCl was investigated using corrosion potential (ECORR), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and electrochemical frequency modulation (EFM) measurements. The obtained results indicated that PMBH has promising inhibitive effects on the corrosion of mild steel in 1.0 M HCl across all of the conditions examined. Scanning electron microscopy (SEM) was used to investigate the morphology of the mild steel before and after immersion in 1.0 M HCl solution containing 0.5 mM of PMBH. Surface analysis revealed improvement of corrosion resistance in presence of PMBH. View Full-Text
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Kadhum, A.A.H.; Mohamad, A.B.; Hammed, L.A.; Al-Amiery, A.A.; San, N.H.; Musa, A.Y. Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin. Materials 2014, 7, 4335-4348.
Kadhum AAH, Mohamad AB, Hammed LA, Al-Amiery AA, San NH, Musa AY. Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin. Materials. 2014; 7(6):4335-4348.Chicago/Turabian Style
Kadhum, Abdul A.H.; Mohamad, Abu B.; Hammed, Leiqaa A.; Al-Amiery, Ahmed A.; San, Ng H.; Musa, Ahmed Y. 2014. "Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin." Materials 7, no. 6: 4335-4348.