Green Corrosion Inhibitor from Kitchen Wastefor Acidic Environments
Keywords:
EGGSHELL, CORROSION, ACIDIC, WEIGHT LOSS, FTIRAbstract
Natural corrosion inhibitors containing calcium carbonate have gained attention due to their performance. Eggshells are promising inhibitors because of their high CaCO₃ content, making their effect on mild steel corrosion important to study. Eggshell waste was extracted using ethanol in a Soxhlet extraction and concentrated by rotary evaporation. Inhibitor solutions of 1–15 g were prepared. FTIR and XRD were used to characterize the inhibitor. Corrosion behavior was evaluated by weight loss tests in 1.0 M HCl for 3, 5, and 7 days. Results showed increased CaCO₃ adsorption on steel surfaces, reducing corrosion rate and improving inhibition efficiency under acidic conditions.
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Copyright (c) 2026 hazriel faizal pahroraji, Muhammad Danial Fitri Nadzri, Muhammad Aidid Mizan Faisulazuan, Addin Farihin Nasri, Muhammad Nabil Arif Azmi Sharizal

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