Kemampuan Daun Jambu Biji sebagai Inhibitor Korosi Besi pada Medium Asam Klorida

Tambun, Rondang; Limbong, Harry P.; Nababan, Panca; Sitorus, Nimrod

doi:10.24817/jkk.v37i2.1815

Cited by 5 publications

(6 citation statements)

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“…Electrochemical reactions are reactions that occur at the anode (experiencing oxidation) and cathode (experiencing reduction), where metal ions are used as anodes and H+ ions from the electrolyte media as cathodes (Rasyid et In this study, the average corrosion rate was lower in the stainless steel wire group soaked in saliva and guava leaf extract concentrations of 200 ppm, 600 ppm, and 1000 ppm, and the higher the concentration of guava leaf extract, the lower the corrosion rate. This result is in line with the research which revealed that the corrosion rate of wire soaked with organic matter was lower than the control group immersed in saliva or saline solution (Herawani et al, 2018;Tambun et al, 2015;Roeswahjuni et al, 2019). The decrease in corrosion rate is due to the presence of active compounds in guava leaf extract such as tannins which contain -C=O and O-H groups which function as antioxidants so that they can become partners for free electrons on metal surfaces.…”

Section: Discussionsupporting

confidence: 88%

Effectiveness of Guava Leaf Extract (Psidium guajava L.) as Corrosion Inhibitor of Stainless Steel Orthodontic Wire

Sari

Nazruddin

Indra

2022

Int J Sci Healthcare Res

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Stainless steel orthodontic wire is one of the wires used in orthodontic treatment. This wire is subject to corrosion. One of the efforts to inhibit corrosion is the addition of corrosion inhibitors. Guava leaves can be used as corrosion inhibitors because they contain active tannin compounds that can inhibit corrosion. This study aimed to analyze the effectiveness of guava leaf extract as a corrosion inhibitor for stainless steel orthodontic wire.This research used 0.16x0.22” stainless steel orthodontic wire from Ormco brand which was cut 40 mm long. 20 pieces of stainless steel wire were divided into 4 groups, namely the group that was soaked in saliva without guava leaf extract (control), saliva, and guava leaf extract 200 ppm, 600 ppm, and 1000 ppm. All wires were weighed before and after immersion. The wire immersion was carried out in an incubator at a temperature of 370 C for 10 days. The corrosion rate of the wire is calculated by the weight loss method. Then proceed with calculating the value of the effectiveness of the inhibitor.The results of this study showed the average corrosion rate of the saliva-soaked group was 0.159 mpy, the saliva-soaked group and guava leaf extract 200 ppm 0.037 mpy, the saliva-soaked group and guava leaf extract 600 ppm 0.033 mpy, and the saliva-soaked and guava leaf extract group guava leaf extract 1000 ppm 0.023 mpy. The results of the kruskal-wallis analysis showed that there was a difference in the corrosion rate between the groups soaked in saliva and guava leaf extract (p<0.05).The effectiveness value of guava leaf extract is effective in inhibiting the corrosion rate with the highest effectiveness of 85.53% Keywords: Corrosion Inhibitor, Stainless Steel Orthodontic Wire, Guava Leaf Extract.

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Section: Discussionsupporting

confidence: 88%

Effectiveness of Guava Leaf Extract (Psidium guajava L.) as Corrosion Inhibitor of Stainless Steel Orthodontic Wire

Sari

Nazruddin

Indra

2022

Int J Sci Healthcare Res

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“…Proses ekstraksi dikerjakan menggunakan metode maserasi dengan pelarut metanol. Pemilihan metanol sebagai pelarut dalam proses maserasi sebab metanol adalah suatu pelarut yang dapat mengikat senyawa kimia yang terkandung dalam tanaman baik yang bersifat non polar, semi polar, dan polar [16] . Pada proses ekstraksi, metanol akan masuk ke dalam sel melalui dinding sel sampel, akibatnya senyawa metabolit sekunder yang terdapat dalam sampel akan larut dan terekstraksi secara sempurna.…”

Section: Hasil Dan Diskusi Ekstraksi Biji Feun Kase (Thevetia Peruviana)unclassified

Pemanfaatan Ekstrak Biji Feun Kase (Thevetia peruviana) sebagai Inhibitor Korosi Logam Seng dalam Media HCl

2022

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Feun Kase seed extract can be used as a corrosion inhibitor on zinc metal in HCl solution. This study aims to determine the secondary metabolites contained in Feun Kase seed extract, inhibition efficiency and corrosion rate, and surface morphology of zinc metal in the inhibition process using Feun Kase seed extract in HCl media. Feun Kase seed extract was obtained by maceration extraction using methanol. In the corrosion inhibition test, the concentration and temperature variations were carried out to determine the effect on the inhibition efficiency and the corrosion rate per year. The results showed that the methanol extract of Feun Kase seeds contained secondary metabolites of alkaloids, flavonoids and saponins. The optimum inhibition efficiency was obtained at an inhibitor concentration of 30 ppm of 82.70% with a corrosion rate of 5.80 mm/year and at a temperature of 35ºC of 75.84% with a corrosion rate of 7.28 mm/year in the test of increasing the temperature of the corrosion medium. The morphological analysis of the zinc plate using the SEM instrument showed that the zinc plate without surface treatment (not immersed in HCl media) was still smooth. This is indicated by the surface of the zinc plate which is still clearly visible because it has not been affected by the corrosion medium. The zinc plate when immersed in HCl media, is damaged which is indicated by the presence of pores or holes. Zinc plate when added with Feun Kase seed extract in HCl media, the zinc surface was damaged but the damage was not as prominent as in HCl media without using an inhibitor.

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“…Keseluruhan dari penelitian ini dilaksanakan kurang lebih selama 3 bulan dari Februari hingga Mei, dengan lama perendaman selama 42 hari. Perendaman dilakukan lebih lama karena lama perendaman akan meningkatkan efisiensi inhibisi (Tambun et al 2015). Kemudian nilai kehilangan berat akan dihitung untuk mencari laju korosi pada spesimen.…”

Section: Metodologi Waktu Dan Tempat Penelitianunclassified

“…Penelitian sebelumnya (Tambun et al, 2015) tentang kemampuan daun jambu biji sebagai inhibitor korosi besi pada medium asam klorida. Plat besi direndam dalam 50mL larutan HCl selama 3,6,9 dan 12 hari.…”

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Pengaruh Inhibitor Ekstrak Daun Jambu Biji (Psidium Guajava) pada Laju Korosi Pipa Galvanis

2022

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PT Sekarbumi Alamlestari merupakan pabrik kelapa sawit yang menggunakan pipa galvanis dalam proses pendistribusian air bersih yang digunakan untuk proses produksi dan penggunaan pada perumahan karyawan perusahaan. Pipa galvanis dapat terkorosi bila terlalu lama berada di lingkungan air gambut, karena air gambut bersifat sangat asam dan korosif. Korosi ini akan berdampak negatif pada kualitas dan proses distribusi air bersih tersebut. Salah satu cara untuk mengurangi korosi yaitu dengan penambahan inhibitor korosi. Jambu biji merupakan salah satu jenis tumbuhan yang dapat digunakan sebagai inhibitor korosi karena mengandung tanin pada daunnya. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak daun jambu biji pada laju korosi pipa galvanis. Metode pengukuran laju korosi yang digunakan adalah metode kehilangan berat selama perendaman. Spesimen pipa galvanis direndam di dalam medium air gambut dengan penambahan dan tanpa penambahan inhibitor. Inhibitor yang diberikan divariasikan yaitu 5%, 7%, 9%,11% dan lama waktu perendaman yang diberikan yaitu selama 42 hari. Hasil penelitian menunjukkan ekstrak daun jambu biji efektif dalam mengurangi laju korosi. Pada perendaman tanpa menggunakan pompa laju korosi terendahnya didapat pada konsentrasi inhibitor 9% yaitu sebesar 0,018 mm/y, dan pada perendaman menggunakan pompa laju korosi terendahnya didapat pada konsentrasi inhibitor 11% yaitu sebesar 0,019 mm/y.

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Kemampuan Daun Jambu Biji sebagai Inhibitor Korosi Besi pada Medium Asam Klorida

Cited by 5 publications

References 0 publications

Effectiveness of Guava Leaf Extract (Psidium guajava L.) as Corrosion Inhibitor of Stainless Steel Orthodontic Wire

Effectiveness of Guava Leaf Extract (Psidium guajava L.) as Corrosion Inhibitor of Stainless Steel Orthodontic Wire

Pemanfaatan Ekstrak Biji Feun Kase (Thevetia peruviana) sebagai Inhibitor Korosi Logam Seng dalam Media HCl

Pengaruh Inhibitor Ekstrak Daun Jambu Biji (Psidium Guajava) pada Laju Korosi Pipa Galvanis

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