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5-(2-Chlorobenzyl)-2,6-Dimethylpyridazin-3-One: An efficient Inhibitor of C38 Steel Corrosion in Hydrochloric Acid | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

5-(2-Chlorobenzyl)-2,6-Dimethylpyridazin-3-One: An efficient Inhibitor of C38 Steel Corrosion in Hydrochloric Acid

Author(s): H. Zarrok, R. Saddik, H. Oudda, B. Hammouti, A. El Midaoui, A. Zarrouk, N. Benchat , M. Ebn Touhami

In the present paper, we report the synthesis of 5-(2-chlorobenzyl)-2,6-dimethylpyridazin-3-one (CBDP) as a potential inhibitor of C38 Steel in aerated 1M HCl solution was studied. For this aim, electrochemical techniques such as potentiodynamic polarization curves, weight loss (WL) and electrochemical impedance spectroscopy (EIS). All the techniques used for the studies shows the increase in inhibition efficiency and decrease in the corrosion rate by increasing the inhibitor concentration. Impedance measurements showed that the double-layer capacitance decreased and charge-transfer resistance increased with increase in the inhibitor concentration and hence increasing in inhibition efficiency. Polarization measurements indicated that, the studied inhibitor acts as mixed type corrosion inhibitor. The adsorption of CBDP molecules on the C38 steel surface obeys Langmuir adsorption isotherm, and the thermodynamic parameters were determined and discussed.


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