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

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1-Ethyl-4-phenyl-2,3-dihydro-1H-1,5-benzodiazepin-2-one as a new corrosion inhibitor for mild steel in hydrochloric acid

Author(s): A. L. Essaghouani, H. Elmsellem, M. Ellouz, M. El Hafi, M. Boulhaoua, N. K. Sebbar, E. M. Essassi, M. Bouabdellaoui, A. Aouniti and B. Hammouti

Adsorption of 1-Ethyl-4-phenyl-2,3-dihydro-1H-1,5-benzodiazepin-2-one (P1) on mild steel surface in 1 M HCl solution and its corrosion inhibition properties has been studied by a series of techniques, such as polarization, electrochemical impedance spectroscopy (EIS), weight loss and quantum chemical calculation methods. Potentiodynamic polarization measurements showed that 1,5-benzodiazepine derivative inhibitor is mixed type. The degree of surface coverage was determined by using weight loss measurements and it was found that adsorption process of studied inhibitor on mild steel surface obey Langmuir adsorption isotherm.


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