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Portugaliae Electrochimica Acta
versión impresa ISSN 0872-1904
Resumen
IRSHEDAT, Muna K. et al. Investigations of the Inhibition of Aluminum Corrosion in 1 M NaOH Solution by Lupinus varius l. Extract. Port. Electrochim. Acta [online]. 2013, vol.31, n.1, pp.1-10. ISSN 0872-1904. https://doi.org/10.4152/pea.201301001.
The effect of the extract of Lupinus varius l. on corrosion of Al in 1 M NaOH solution using the weight loss technique was investigated. Lupinus varius l. extract inhibited the corrosion of Al in 1 M NaOH solution and the inhibition efficiency increased with increasing the concentration of the extract and decreased with increasing temperature. The adsorption of the inhibitor molecules on Al surface was in accordance with Langmuir and Temkin adsorption isotherms. A first-order kinetic relationship with respect to Al was obtained with and without the extract from the kinetics treatment of the data.
Palabras clave : aluminum; Lupinus varius l.; inhibition efficiency; basic corrosion; weight loss technique.