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


Anti-corrosive properties of Nigella sativa L extract on mild steel in molar HCl solution

Author(s): El Mounsi, H. Elmsellem, A. Aouniti, H. Bendaha, M. Mimouni, T. Ben Hadda, H. Steli, M. Elazzouzi, Y. EL Ouadi and B. Hammouti

Corrosion inhibition effect of Nigella Sativa L extract (SE NS) on corrosion of mild steel in 1 M HCl solution was investigated using weight loss measurements, electrochemical polarization and EIS methods. Results obtained reveal that Nigella Sativa L extract acts as a mixed inhibitor without modifying the hydrogen reduction mechanism. The inhibition efficiency increases with increased Nigella Sativa L extract concentration to attain a maximum value of 99% at 2 g/L. The adsorption of natural product on the steel surface was found obey to Langmuir’s adsorption isotherm.