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The study investigates the use of expired Phenytoin sodium as a corrosion inhibitor for carbon steel in 1M HCl solution, demonstrating an inhibition efficiency of up to 79% at 500 ppm. Various techniques, including weight loss measurements and electrochemical impedance spectroscopy, were employed to analyze the corrosion inhibition process, which follows Langmuir adsorption isotherm. The findings suggest that expired drugs can serve as effective, non-toxic alternatives for protecting metals against corrosio

Author

mmaggio

Language

EN