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Lisinopril, Enalapril, Captopril drugs as save corrosion inhibitors for carbon steel in 0.5 M HCl solutions | Abstract

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

ISSN: 0975-413X

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Abstract

Lisinopril, Enalapril, Captopril drugs as save corrosion inhibitors for carbon steel in 0.5 M HCl solutions

Author(s): A. S. Fouda, S. Eldafrawy, A. Bakr

The hindrance effect for corrosion of some drugs on metal in 0.5M hydrochloric acid was done by chemical (WL) and electrochemical(EIS, EFM, tafel polarization) techniques. Themorphology of surface utilized by EDX and electron scanning microscopy (SEM) method. From the data obtain the efficiency inhibition rise with higher the concentration inhibitor but lowering by increment of temperature. Potentiodynamic polarization for compounds given both the anodic and cathodic processes and play as mixed-type. The isotherm of adsorption of drug on metal follow the Temkin adsorption. The temperature effect on inhibition corrosion has been doneand thermodynamic activation.


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