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Copyright © 2020 F. O. Edoziuno et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0/

Abstract

The inhibitive effect of mebendazole (MBZ) on the corrosion of low-carbon steel in H2SO4 was investigated by gravimetric and electrochemical techniques as well as examination of specimens in the scanning electron microscope with attached energy dispersive X-ray spectrometer (EDS). From gravimetric analysis, the highest inhibition efficiency of about 96.6% was obtained for 1.0 g of inhibitor in H2SO4 solution at 24 h, while with longer exposure times of between 72 to 120 h, the efficiencies averaged between 92 and 95%. Tafel extrapolations from the polarization curves showed that 1.0 g MBZ gave a maximum inhibition efficiency of approximately 99% for the investigation conducted at 30°C, whereas 1.5 g of MBZ gave a maximum inhibition efficiency of about 85% at 60°C. Inhibition efficiency increased with increasing concentrations of MBZ and decreased at elevated temperatures. The inhibitive action was attributed to physical adsorption of MBZ species on the mild steel surface which followed the Langmuir adsorption isotherm. MBZ performed as a mixed-type inhibitor on mild steel in dilute H2SO4.

Details

Title
Performance of Methyl-5-Benzoyl-2-Benzimidazole Carbamate (Mebendazole) as Corrosion Inhibitor for Mild Steel in Dilute Sulphuric Acid
Author
Edoziuno, F O 1   VIAFID ORCID Logo  ; Adediran, A A 2   VIAFID ORCID Logo  ; Odoni, B U 1 ; Oki, M 2   VIAFID ORCID Logo  ; Ikubanni, P P 2 ; Omodara, O 3 

 Department of Metallurgical Engineering, Delta State Polytechnic, Ogwashi-Uku, Ozoro, Nigeria 
 Department of Mechanical Engineering, Landmark University, PMB 1001, Omu-Aran, Kwara, Nigeria 
 Department of Metallurgical and Materials Engineering, Federal University of Technology Akure, PMB 704, Akure, Ondo, Nigeria 
Editor
Ghadir A El-Chaghaby
Publication year
2020
Publication date
2020
Publisher
John Wiley & Sons, Inc.
ISSN
23566140
e-ISSN
1537744X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2420067189
Copyright
Copyright © 2020 F. O. Edoziuno et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0/