The effect of mild steel immersion time on synergistic corrosion inhibitor ability of terminalia catappa leaves extract

Arief Rafik, Sri Agustina, Marta Pramudita


Inhibitors from natural materials are safe for the environment to replace chemical inhibitors in inhibiting corrosion. The tannin compounds contained in the Terminalia Catappa leaves extract have the ability to inhibit the corrosion rate. This study aims to determine the ability of Terminalia Catappa leaves extract and its synergism with KI in inhibiting the corrosion rate of mild steel metal. Mild steel that has been sanded and cleaned is then immersed in demineralized water. The immersion time was carried out in 3 variations which were 1, 3, and 5 hours. The weight-loss method is used to calculate the corrosion rate. The lowest corrosion rate was obtained at 0.0018 mmpy at immersion for an hour, and the concentration of inhibitor was 1250 ppm. The highest inhibition efficiency was obtained at 90% in immersion for an hour with a 1250 ppm inhibitor concentration.


Inhibitor dari bahan alam digunakan karena aman bagi lingkungan untuk menggantikan inhibitor bahan kimia dalam menghambat laju korosi. Senyawa tanin yang terkandung pada ekstrak daun ketapang memiliki kemampuan untuk menghambat laju korosi. Penelitian ini bertujuan untuk mengetahui kemampuan ekstrak daun ketapang dan sinergisitas dengan KI dalam menghambat laju korosi pada logam mild steel. Mild steel yang telah diamplas dan dibersihkan kemudian direndam ke dalam media korosif yaitu air demineralisasi. Waktu perendaman dilakukan pada 3 variasi waktu yaitu, 1, 3, dan 5 jam. Metode weight loss digunakan untuk menghitung laju korosi. Laju korosi terendah didapatkan sebesar 0.0018 mmpy pada perendaman selama 1 jam dan konsentrasi inhibitor 1250 ppm. Efisensi inhibisi tertinggi didapatkan sebesar 90% pada perendaman selama 1 jam dengan konsentrasi inhibitor 1250 ppm.


Terminalia catappa, mild steel, inhibitor.

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Yanuar, A. P., Pratikno, H., & Titah, H. S. (2016). Pengaruh penambahan inhibitor alami terhadap laju korosi pada material pipa dalam larutan air laut buatan. Jurnal Teknik Institut Teknologi 10 November, Vol 5, No. 2.

Fontana, Mars Guy. (1987). Corrosion Engineering (3rd Ed.). Singapore: McGraw-Hill Book Co.

Han, P., He, Y., Chen, C., Yu, H., Liu, F., Ma, Y., & Zhang, Y. (2016). Study on synergistic mechanism of inhibitor mixture based on electron transfer behaviour. Scientific Reports vol.6 (September) 1-10.

Pramudita, M., Nasikin, M., & Sukirno. (2019). Synergistic corrosion inhibition effect of rice husk extract and KI for mild steel in H2SO4 Solutions. Bulletin of chemical reaction engineering and catalysis, 14(3) 697 – 704.

Bangera, S., Alva V. D. P. (2020). Corrosion inhibitive property of environmentally Benign Syzygium Jambos Leaf Extract on mild steel in 1 M HCl. Journal of Failure Analysis Previous, 20(3):734–743.

Hassannejad, H., & Nouri, A. (2018). Sunflower seed hull extract as a novel green corrosion inhibitor for mild steel in HCl solution. Journal of Molecule Liquid, 254:377–382.

Saeed, M. T., Saleem, M., Usmani, S., Malik, I. A., Al-Shammari, F. A., & Deen, K. M. (2019). Corrosion inhibition of mild steel in 1 M HCl by sweet melon peel extract. Journal of King Saud Univ Science, 31(4):1344–135.

Ogunleye, O. O., Eletta, O. A., Arinkoola, A. O., & Agbede, O. O. (2018). Gravimetric and quantitative surface morphological studies of Mangifera indica peel extract as a corrosion inhibitor for mild steel in 1 M HCl solution. Asia Pacific Journal Chemical Engineering, 13(6): e2257.

Abdel-Gaber, A. M., Rahal, H. T., & Beqai, F. T. (2020). Eucalyptus leaf extract as an eco-friendly corrosion inhibitor for mild steel in sulfuric and phosphoric acid solutions. International Journal of Industrial Chemical, 11(2):123–132.

Saxena, A., Prasad, D., Haldhar, R., Singh, G., & Kumar, A. (2018). Use of Sida cordifolia extract as green corrosion inhibitor for mild steel in 0.5 M H2SO4. Journal of Environmental Chemical Engineering, 6(1):694–700.

Li, X., Deng, S., Du, G., & Xie, X. (2020). Synergistic inhibition effect of walnut green husk extract and sodium lignosulfonate on the corrosion of cold-rolled steel in phosphoric acid solution. Journal Taiwan Instrumentation of Chemical Engineering, 114:263–283.

Verma, D. K, & Khan, F. (2015). Corrosion inhibition of high carbon steel in phosphoric acid solution by extract of black tea. Advances in research. 1–9.

Noor, E. A., Al-Moubaraki, A., Al-Zhrani, A. H., & Hubani, M. H. (2016). Testing and comparing the inhibitory action of red onion seeds and peels extracts on the corrosion of steel in phosphoric acid. International Journal of Electrochemical Science, 11:6523–6539.

Pramudita, M., Nasikin, M., & Sukirno. (2018). Rice husk extract ability to reduce the corrosion rate of mild steel. International of chemical engineering applications, 9: 143 -146.

Chaubey, N., Qurashi, A., Chauhan, D. S., Quraishi, M. (2021). Frontiers and advances in green and sustainable inhibitors for corrosion applications: A critical review. Journal of Molecule Liquid, 321:114385.

Pramudita, M., Sukirno, & Nasikin, M. (2020). Performance of Terminalia catappa leaves extract as a bio-corrosion inhibitor for mild steel in H2SO4 Solutions. Proceeding of the 9th Annual International Conference (AIC) Banda Aceh, Indonesia. IOP Conf. Ser.: Mater. Sci. Eng. 796 012059. Doi:10.1088/1757-899X/796/1/012059.

Umoren, S. A., & Solomon, M. M. (2017). Synergistic corrosion inhibition effect of metal cations and mixtures of organic compounds: A Review. Journal of Environmental Chemical Engineering, 5(1): 246-273.

Peres, Rafael Silveira., Cassel, Eduardo., & Azambuja, Denise Schermann. (2012). Black Wattle Tannin As Steel Corrosion Inhibitor. International Scholary Research Network, ISRN Corrosion Volume 2012, Article ID 937920, 9 pages.

Peres, R. S., Cassel, E., & Azambuja, D. S. (2012). Black wattle tannin as steel corrosion inhibitor. International Scholarly Research Notices, vol. 2012, Article ID 937920, 9 pages,

Xu, W., Han, E-H., & Wang, Z. (2019). Effect of tannic acid on corrosion behaviour of carbon steel in NaCl solution. Journal of Materials Science Technology, 35(1):64–75.

Miralrio, A., & Espinoza, V. A. (2020) Plant extracts as green corrosion inhibitors for different metal surfaces and corrosive media: A review. Processes 8(8):942.

Sundjono, S., & Saefudin, S. (2018). Pengaruh temperatur dan pH air sadah Kalsium Sulfat terhadap korosi pada baja karbon. Metalurgi, 29(1), 41-50.

Umoren, S. A., Solomon, M. M. (2015). Effect of halide ions on the corrosion inhibition efficiency of different organic species – A review. Journal of Industrial and Engineering Chemistry, 21: 81-100.

Awizar, D. A., Othman, N. K., Jalar, A., Daud, A. R., Rahman, I. A., & Al-hardan, N. H. (2013). Nano silicate Extraction from Rice Husk Ash as Green Corrosion Inhibitor. International Journal of Electrochemical Science., 8 (2013) 1759 – 1769.



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