Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Inhibition of mild steel corrosion using the extract of Foeniculum vulgare in acid medium
Author(s): A. Bouoidina, F. El-Hajjaji, M. Chaouch, A. Abdellaoui, H. Elmsellem,Z. Rais, M. Filali Baba, A. Lahkimi, B. Hammouti and M. TalebThis paper describes the performance of essential oil of Foeniculum Vulgare Leaves FVL as corrosion inhibitors for steel mild in 1 M hydrochloric acid solutions in the concentration range of 0.4 g/l to 1g/l by weight loss measurements, polarization methods, impedance spectroscopy and scanning electron microscope as a surface treatment method. The effect of FVL extract on the corrosion rate was determined at different temperatures. The inhibition efficiency increased with inhibitor concentration but decrease with rise in temperature. All the data obtained indicate that FVL extract is capable of inhibiting the corrosion of steel mild in HCl solution with a very high efficiency. Polarization data show that FVL behaves as a mixed type inhibitor which is absorbed between the extract and the mild steel substrate by physical adsorption
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