Abstract

This report presents turnip bark extract (TBE) as a cost-effective, eco-friendly, and efficient inhibitor for carbon steel corrosion in 1 M HCl solution. TBE, acquired in a water solvent, was analyzed for its composition. Electrochemical methods explored TBE's impact on corrosion rates at varying temperatures. Optimal inhibition was achieved at 10 % TBE concentration, exhibiting 92.1 % inhibition efficiency (IE%) at 298 K. Physicochemical analysis confirmed TBE's alignment with the Langmuir isotherm, indicating physical surface adsorption. Additionally, theoretical molecular dynamics (MD) simulations identified the primary inhibitor compound as 3,5-dihydroxy-6-methyl-2,3-dihydropyran-4-one (DHMDP).

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