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Inhibition effect of horehound (Marrubium vulgare L.) extract towards C38 steel corrosion in HCl solution |
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| Authors: | Dris Ben Hmamou Rachid Salghi Abdelkader Zarrouk Hassan Zarrok Omar Benali Mohamed Errami Belkheir Hammouti |
| Institution: | 1. Equipe de Génie de l’Environnement et de Biotechnologie, ENSA, Université Ibn Zohr, BP 1136, Agadir, Morocco 2. LCAE-URAC18, Faculté des Sciences, Université Mohammed Premier, BP 4808, Oujda, Morocco 3. Laboratoire des procèdes de séparation, Faculté des Sciences, Kénitra, Morocco 4. Département de Biologie, Faculté des Sciences et de la Technologie, Université de Tahar Moulay, Sa?da, Algéria |
| Abstract: | The corrosion inhibition properties of horehound (Marrubium vulgare L.) extract (HE) in 1 M hydrochloric acid medium was carried out using electrochemical methods (polarization curve and electrochemical impedance spectroscopy). Experiments were performed by concentration of the inhibitor and temperature effect. The results showed variation in inhibition performance of this plant extract. The Langmuir model was tested to describe the adsorption behavior of the inhibitor on the C38 steel surface. Some thermodynamic functions of dissolution processes were also determined. |
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