Evaluating the Influence of Temperature on the Efficacy of Capparis Decidua Extract as a Corrosion Inhibitor for Aluminium in Acidic Media

Year : 2024 | Volume :15 | Issue : 03 | Page : 58-65
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Arvind Kumar Meena,

  1. Assistant Professor, Govt. Girls College, Karauli, Rajasthan, India

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The study investigates the anti-corrosive properties of the ethanolic extract of Capparis decidua fruit on aluminum corrosion in a 2N HCl acid solution, using a weight loss technique at temperatures ranging from 303 to 343 K. At a concentration of 0.45%, the inhibition efficiency (η%) is notably high, reaching 63.15% at 303 K. The inhibitor’s adsorption behavior on the aluminum surface is consistent with the Langmuir adsorption isotherm, suggesting that the process is exothermic, physical, and spontaneous. Along with kinetic parameters including activation energy (Ea), enthalpy of activation (ΔHact), and entropy of activation (ΔSact), thermodynamic parameters were also evaluated. These included the free energy of adsorption (ΔG0ads), enthalpy of adsorption (ΔH0ads), and entropy of adsorption (ΔS0ads). These properties hint to a robust interaction between the aluminum surface and the inhibitor molecules. The significant anti-corrosive effect is attributed to the phytochemical constituents present in the Capparis decidua fruit extract, which enhance the formation of a protective layer on the metal surface. This study highlights the potential of Capparis decidua fruit extract as an effective, natural corrosion inhibitor for aluminum in acidic environments.

Keywords: Aluminium, acid corrosion, capparis decidua, langmuir adsorption isotherm, thermodynamic and kinetic parameters.

[This article belongs to Journal of Modern Chemistry & Chemical Technology (jomcct)]

How to cite this article:
Arvind Kumar Meena. Evaluating the Influence of Temperature on the Efficacy of Capparis Decidua Extract as a Corrosion Inhibitor for Aluminium in Acidic Media. Journal of Modern Chemistry & Chemical Technology. 2024; 15(03):58-65.
How to cite this URL:
Arvind Kumar Meena. Evaluating the Influence of Temperature on the Efficacy of Capparis Decidua Extract as a Corrosion Inhibitor for Aluminium in Acidic Media. Journal of Modern Chemistry & Chemical Technology. 2024; 15(03):58-65. Available from: https://journals.stmjournals.com/jomcct/article=2024/view=0

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Regular Issue Subscription Original Research
Volume 15
Issue 03
Received 05/08/2024
Accepted 28/09/2024
Published 09/10/2024
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