Aluminium Corrosion Inhibition by  Maesobatrya barteri Root Extract in Hydrochloric Acid Solution

O. U. Abakedi; I. E. Moses

doi:10.9734/ACSJ/2016/21812

Research Article Open access CC BY 4.0

Aluminium Corrosion Inhibition by Maesobatrya barteri Root Extract in Hydrochloric Acid Solution

O. U. Abakedi, I. E. Moses

Chemical Science International Journal · pp. 1–10 · Published 23 Oct 2015

10.9734/ACSJ/2016/21812

Abstract

Maesobatrya barteri root extract inhibited the corrosion of aluminium in hydrochloric acid solutions by both gravimetric and thermometric methods. The inhibition efficiency increased with increase in root extract concentration but decreased with increase in temperature. The adsorption of the root extract on aluminium surface obeyed the Langmuir adsorption isotherm. The calculated thermodynamic parameters revealed that the corrosion inhibition process was both endothermic and spontaneous. Physical adsorption has been proposed for the adsorption of Maesobatrya barteri root extract on aluminium surface.

Corrosion inhibition Langmuir isotherm aluminium Maesobatrya barteri; physisorption

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O. U. Abakedi, I. E. Moses (2015). Aluminium Corrosion Inhibition by Maesobatrya barteri Root Extract in Hydrochloric Acid Solution. Chemical Science International Journal , 1–10. https://doi.org/10.9734/ACSJ/2016/21812

Affiliations

O. U. Abakedi — Department of Chemistry, University of Uyo, P.M.B. 1017, Uyo, Nigeria
I. E. Moses — Department of Chemistry, University of Uyo, P.M.B. 1017, Uyo, Nigeria

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