Analysis of Corrosion Inhibiton Potential of Acacia nilotica Fruits on Aluminium Corrosion in Acidic and Alkaline Media
Publish place: International Journal of New Chemistry، Vol: 9، Issue: 3
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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JR_IJNC-9-3_008
تاریخ نمایه سازی: 24 اردیبهشت 1401
Abstract:
In this study, the inhibitive action of Acacia nilotica fruits powder towards the corrosion behavior of aluminium in ۱.۰M HCl and ۱.۰M NaOH solutions has been studied without carrying out any solvent extraction of the fruits powder using weight loss method. Acacia nilotica showed corrosion inhibition efficiency of ۹۸.۸۳ and ۷۱.۶۴% in HCl and NaOH respectively in the presence of ۰.۵% w/v inhibitor concentration at ۳۱۸K. The activation energy increases from that of the blanks (۲۳.۸۴ and ۴۹.۲۵ kJmol-۱) to the inhibited (۵۵.۹۲ and ۶۵.۹۲ kJ mol-۱) in HCl and NaOH respectively. The adsorption process was spontaneous as indicated by the large negative values of and . The values of enthalpy were positive indicating endothermic process of adsorption. The adsorption of Acacia nilotica on aluminium was best fitted to Langmuir adsorption model in both media. The result of FTIR Spectra also indicated physisorption mechanism as proposed by the thermodynamic data.
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Authors
Muhammad Ibrahim
Department of pure and industrial chemistry, Bayero university kano, Nigeria.
Sani Abdul
Department of pure and industrial chemistry, faculty of physical sciences, Bayero University, Kano
Muhammad Ibrahim
Department of pure and industrial chemistry, Bayero university kano, Nigeria
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