Leucaena leucocephala (Ipil-Ipil) Bark as a Natural Rust Remover for Mild Steel
DOI:
https://doi.org/10.65339/ijsair.V2.I2.345Keywords:
Corrosion, Leucaena Leucocephala, Mild Steel, Phytochemicals, Rust Removal, Sustainable Materials, TanninsAbstract
This study investigated the effectiveness of Leucaena leucocephala (ipil-ipil) bark extract as a natural rust remover for mild steel, addressing the growing need for eco-friendly alternatives to hazardous chemical rust removers. Grounded in phytochemical interaction theory, the study focused on the ability of tannins, polyphenols, and organic acids to react with iron oxides and facilitate corrosion removal. A quantitative true experimental design was employed, using rusted mild steel plates as experimental units. Rust was induced using a 10% NaCl solution, and treatments included Leucaena leucocephala bark extract, a commercial rust remover, and distilled water as control. Data were collected through mass analysis, ISO 8501-1 surface cleanliness ratings, and photographic documentation, with statistical analysis conducted using mean, One-Way ANOVA, and Tukey HSD tests. Results revealed that Leucaena leucocephala bark extract achieved the highest effectiveness (83.33%, Sa 2½), outperforming the commercial rust remover (55.56%, Sa 2), while distilled water showed no effectiveness (0%). Statistical analysis confirmed significant differences among treatments (F = 30.5, p = 0.000718173), establishing the natural extract as significantly more effective. The findings demonstrate that treatment type significantly influences rust removal performance and validate the bark extract as a viable, cost-effective, and environmentally friendly alternative. The study recommends further investigation into concentration optimization, broader metal applications, and formulation improvements. This study supports SDG 9 (Industry, Innovation and Infrastructure) and SDG 12 (Responsible Consumption and Production) by promoting sustainable material maintenance and eco-friendly alternatives to chemical products. Its sustainability impact lies in reducing environmental and health risks associated with chemical rust removers while advancing green chemistry solutions that are accessible to local communities.
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