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Effect of substituted methyl group by phenyl group in pyridazine ring on the corrosion inhibition of mild steel in 1.0 M HCl

Ayssar Nahle (Department of Chemistry, University of Sharjah, Sharjah, United Arab Emirates)
Fadoua El-Hajjaji (Department of Chemistry, Sidi Mohammed Ben Abdellah University, Fez, Morocco)
Abdeslam Ghazoui (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)
Nour-Eddine Benchat (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)
Mustapha Taleb (Faculty of Sciences, University of Sidi Mohammed Ben Abdellah, Fez, Morocco)
Rafik Saddik (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)
Abdelmalik Elaatiaoui (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)
Mohammed Koudad (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)
Belkheir Hammouti (Department of Chemistry, University of Mohammed Premier, Oujda, Morocco)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 2 January 2018

Abstract

Purpose

The purpose of this paper is to study the inhibition effect of (6-phenyl-3-oxopyridazin-2-yl) acetohydrazide (GP4) on the corrosion of mild steel in acidic medium by gravimetric measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS).

Design/methodology/approach

Weight loss measurements, potentiodynamic tests and EIS were performed during this study.

Findings

(6-phenyl-3-oxopyridazin-2-yl) acetohydrazide (GP4) was found to be a very efficient inhibitor for mild steel in 1.0 M HCl solution, reaching about 85 per cent with inhibitor concentration 1.0 × 10-3 M at 303 K.

Practical implications

(6-phenyl-3-oxopyridazin-2-yl) acetohydrazide (GP4) was found to play an important role in the corrosion inhibition of mild steel in acidic solution.

Originality/value

This paper is intended to be added to the family of pyridazine derivatives which are highly efficient inhibitors and can be used in the area of corrosion prevention and control.

Keywords

Citation

Nahle, A., El-Hajjaji, F., Ghazoui, A., Benchat, N.-E., Taleb, M., Saddik, R., Elaatiaoui, A., Koudad, M. and Hammouti, B. (2018), "Effect of substituted methyl group by phenyl group in pyridazine ring on the corrosion inhibition of mild steel in 1.0 M HCl", Anti-Corrosion Methods and Materials, Vol. 65 No. 1, pp. 87-96. https://doi.org/10.1108/ACMM-03-2017-1769

Publisher

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Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited