Abstract

IMANE, Hamdou; MOHAMED, Essahli  and  ABDESLAM, Lamiri. Inhibition of Aluminum Corrosion in 0.1 M Na₂CO₃ by Mentha pulegium. Port. Electrochim. Acta [online]. 2019, vol.37, n.6, pp.335-344. ISSN 0872-1904.  https://doi.org/10.4152/pea.201906335.

The corrosion inhibition of aluminum, in 0.1 M Na₂CO_3, by Mentha pulegium essential oil, was studied using both polarization and impedance methods. The results show that Mentha pulegium is an effective inhibitor, providing an inhibition rate of 94.16 %, with a concentration of 800 ppm. The polarization study shows that the Mentha pulegium essential oil acted as a mixed inhibitor in 0.1 M Na₂CO₃. The activation energy calculation has proved that the inhibitor molecules adsorbed onto the aluminum surface, according to the physisorption mechanism.

Keywords : Aluminum; corrosion; inhibition; Na₂CO₃; mentha pulegium.

        · text in English     · English ( pdf )