ANALISIS LAJU KOROSI PADA PLAT BESI MENGGUNAKAN EKSTRAK DAUN GAMAL (Gliricidia sepium) SEBAGAI INHIBITOR ALAMI DALAM MEDIA HCl 3% DAN H2O
-
Titus Lapailaka(1*)
-
Olimpia Y. Anul(2)
(*) Corresponding Author
Abstract
Improving the corrosion resistance of iron in acidic environments is an important consideration in industry. This research was conducted to analyze the corrosion inhibition of iron using ethanolic extract of gamal leaf (Gliricidia sepium) as a natural inhibitor in 3% HCl and H2O media. The aim was to determine the effect of inhibitor concentration on the corrosion rate of iron plate immersed in corrosive media of 3% HCl and H2O and to determine the effect of immersion time on the efficiency of ethanolic extract of gamal leaf on the corrosion rate of iron plate in corrosive media of 3% HCl and H2O. The results indicated that the higher the concentration of ethanolic extract of gamal leaf, the lower the corrosion rate. The highest concentration of ethanolic extract of gamal leaf used was 10%, with the corrosion rate values of 0.0044 cm/year in 3% HCl media and 0.0051 cm/year in H2O media. It is observed that tanin compound in ethanolic extract of gamal leaf showed potential as an iron corrosion inhibitor in 3% HCl and H2O media with efficiencies of 91.46% and 88.19%, respectively.
Downloads
References
2. Setiawan, S. & Nasrulloh, Y. SINTESIS GREEN INHIBITOR EKSTRAK DAUN TREMBESI (Samanea saman (Jacq.) Merr) SEBAGAI PEREDUKSI LAJU KOROSI LOGAM BAJA KARBON. Khazanah J. Mhs. 12, (2020).
3. Haryono, G., Sugiarto, B. & Farid, H. Ekstrak Bahan Alam sebagai Inhibitor Korosi. Pros. Semin. Nas. Tek. Kim. “Kejuangan” Pengemb. Teknol. Kim. untuk Pengolah. Sumber Daya Alam Indones. 1–6 (2010).
4. Indrayani, N. L. Studi Pengaruh Ekstrak Eceng Gondok Sebagai Inhibitor Korosi Untuk Pipa Baja Ss400 Pada Lingkungan Air. J. Imiah Tek. Mesin 4, 47–56 (2016).
5. Mulyaningsih, N., Pramono, C. & Prasetyo, R. T. Pengaruh Penambahan Inhibitor Organik Ekstrak Eceng Gondok Terhadap Laju Korosi. J. Mech. Eng. 2, (2018).
6. Akharaiyi, F. C., Boboye, B. & Adetuyi, F. C. Antibacterial, phytochemical and antioxidant activities of the leaf extracts of Gliricidia sepium and Spathodea campanulata. World Appl. Sci. J. 16, 523–530 (2012).
7. Luh Budi Artaningsih, N., Habibah, N., Mastra, N., Analis Kesehatan, J. & Kesehatan Kemenkes Denpasar, P. Aktivitas Antibakteri Ekstrak Etanol Daun Gamal (Gliricidia sepium) pada Berbagai Konsentrasi terhadap Pertumbuhan Bakteri Streptococcus mutans secara In-Vitro. Jurnal Kesehatan vol. 9 http://ejurnal.poltekkes-tjk.ac.id/index.php/JK (2018).
8. Runadi, D. Isolasi dan Identifikasi Alkaloid dari Herba Komfrey. KARYA Ilm. Penelit. YANG TIDAK DIPUBLIKASIKAN (2007).
9. Ryanata, E. PENENTUAN JENIS TANIN DAN PENETAPAN KADAR TANIN DARI KULIT BUAH PISANG MASAK (Musa paradisiaca L.) SECARA SPEKTROFOTOMETRI DAN PERMANGANOMETRI. J. Ilm. Mhs. Univ. Surabaya 4, 1–16 (2015).
10. L., S. Isolasi Dan Identifikasi Senyawa Tanin Dari Daun Belimbing Wuluh (Averrhoa bilimbi L.). Skripsi (2010).
11. Ash, M. & Ash, I. Handbook of Corrosion inhibitors. Metal Finishing vol. 98 (2000).
12. Gusti, D. R. Laju Korosi Baja Dalam Larutan Asam Sulfat dan Dalam Larutan Natrium Klorida. J. Fis. Univ. Jambi 2002–2005 (2002).
13. Sandy, B. D. N. Efektifitas Ekstrak Etanol Daun Gamal (Gliricidia sepium) Terhadap Mortalitas Cacing Ascaridia galli Secara In Vitro. 6, 82–87 (2020).
14. Mukhiriani, Nonci, F. Y. & Mumang. Penetapan Kadar Tanin Total Ekstrak Biji Jintan Hitam (Nigella sativa) Secarqa Spektrofotometri UV-Vis. J. Farm. UIN Alauddin Makassar 2, 154–158 (2014).
15. Yufita, E., Fitriana, D. & Zulfalina, Z. Control of Corrosion Rate on A36 Black Plate Steel in Corrosive Medium Using Salam Leaf Extract Inhibitor. J. Aceh Phys. Soc. 7, 67–71 (2018).
In order to publish in Chemistry Notes, authors are required to agree to the copyright permission stating that the authors give the publisher the right to reproduce, display or distribute the accepted manuscript. In this agreement the authors also automatically declare that the submitted manuscript is exempted from plagiarism issue and conflict of interest among the authors.
