Jurnal Pijar MIPA
Vol. 17 No. 6 (2022): November 2022

Effect of the addition of inhibitors of kirinyuh leaf (Chromolaena Odorata) in methanol extract on corrosion rate of ASTM 36 steel

Fauzi Widyawati (Metallurgical Engineering Study Program, Faculty of Environmental and Mineral Technology, Sumbawa University of Technology)
Syamsul Hidayat (Environmental Engineering Study Program, Faculty of Environmental and Mineral Technology, Sumbawa University of Technology)
Syamsul Bahtiar (Metallurgical Engineering Study Program, Faculty of Environmental and Mineral Technology, Sumbawa University of Technology)
Musbihin Musbihin (Metallurgical Engineering Study Program, Faculty of Environmental and Mineral Technology, Sumbawa University of Technology)

Article Info

Publish Date
30 Nov 2022

Abstract

Kirinyuh leaves (Chromolaena Odorata) contain alkaloids, saponins, flavonoids, phenols, and tannins with the potential as a natural inhibitor that can be used to inhibit the rate of corrosion. Kirinyuh leaf extract inhibitors were added at various concentrations of 100 ppm, 200 ppm, 300 ppm, 400 ppm, and 500 ppm, which were sprayed onto the sample surface before being soaked for seven days. Calculation of the corrosion rate using the method of weight loss (weight loss). The results showed that kirinyuh leaf extract effectively inhibited the corrosion rate. The smallest corrosion rate value was found in the sample with the addition of 400 ppm inhibitor concentration, which was 2.053 ppm. Meanwhile, an efficiency inhibitor was also found in the same concentration of inhibitor that is equal to 87%.

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Journal Info
Jurnal Pijar MIPA
Website

Abbrev

JPM

Publisher

Universitas Mataram

Subject

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

Description

Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current ...