Pengaruh Metode Ekstraksi Kulit Pisang Candi (Musa Spp.) Sebagai Green Corrosion Inhibitor Terhadap Laju Korosi Baja API 5 L Grade B Pada Lingkungan 3.5% Nacl

Rahmawati, Eka Amilia (2016) Pengaruh Metode Ekstraksi Kulit Pisang Candi (Musa Spp.) Sebagai Green Corrosion Inhibitor Terhadap Laju Korosi Baja API 5 L Grade B Pada Lingkungan 3.5% Nacl. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Inhibitor kulit pisang candi memiliki potensi untuk dijadikan Green Corrosion Inhibitor karena mengandung antioksidan seperti tanin. Untuk mengolah kulit pisang candi menjadi inhibitor dapat dilakukan dengan beberapa metode ekstraksi. Dalam penelitian ini memiliki tujuan untuk menganalisa pengaruh metode ekstraksi (maserasi, reflux dan Infudasi) terhadap kualitas hasil ekstrak dan pengaruhnya saat diaplikasikan sebagai inhibitor pada larutan elektrolit 3,5% NaCl, serta menentukan metode mana yang paling efektif untuk diaplikasikan dalam produksi skala industri. Untuk menganalisa pengaruh penambahan inhibitor hasil dari beberapa metode ekstraksi tersebut, maka dilakukan beberapa pengujian seperti uji spektrofotometri, FTIR, weight loss, Tafel, dan EIS. Hasil ekstraksi dari setiap metode menghasilkan ekstrak sebanyak 14,37 gr metode maserasi, 14,40 gr metode reflux dan 14,28 gr metode infudasi. Kandungan tanin dari setiap metode ekstrasi sebesar 1,19% metode maserasi, 1,29% metode reflux dan 1,30 metode infudasi. Effisien tertinggi yang diperoleh dari pengujian weight loss dari setiap metode sebesar 42,06% metode maserasi, 49,04% metode reflux dan 57,45% metode infudasi. Sedangkan dari pengujian Polarisasi Potensiodinamik didapat efisiensi tertinggi dari setiap metode sebesar 84,87% metode maserasi, 91,71% metode reflux dan 72,61% metode infudasi. Ditinjau dari hasil pengujian yang telah dilakukan, metode yang paling efektif diterapkan dalam mengekstrak kulit pisang candi adalah metode infudasi dengan kandungan tanin dan effisien tertinggi. Serta waktu yang tidak lama yaitu 2 jam dan biaya yang tidak terlalu mahal, karena instrumen yang digunakan dapat diganti dengan instrumen konvensional. ================================================================================= Inhibitors of banana skin has the potential to be a Green Corrosion Inhibitor because it contains antioxidants such as tannins. To cultivate the banana skin into inhibitor can be done by several methods of extraction. This study has the objective to analyze the influence of variations in methods of extraction (maceration, reflux and infuse) on the quality of the extract and its effect when applied as an inhibitor in the electrolyte solution of 3.5% NaCl, and determine which method is most effective for application in industrial-scale production , To analyze the effect of adding the inhibitor results of some of the extraction method, there will be some test. Test spectrophotometry, FTIR, weight loss, Tafel and EIS . The results of each method produces extract as much as 14.37 g for maceration method, 14.40 grams for reflux method and 14.28 grams for infuse method. Tannin content of each extraction from maceration,reflux, and infusemethod are 1.19%, 1.29% and 1.30. The highest efficient obtained from the testing of each method of weight loss are 42.06% for maceration method, 49.04% for reflux method, and 57.45% infuse method. The result from potentiodynamic polarization testing obtained the highest efficiency from maceration, reflux, and infuse method are 84.87%, 91.71% and 72.61%. From the results of tests that have been carried out, the most effective method for making banana peel extract is infuse method because it has the highest content of tannins ,can be done in short time and the cost is not too expensive, because the instruments used may be replaced with a conventional instrument.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.112 23 Rah p
Uncontrolled Keywords: baja karbon rendah; inhibitor organik; NaCl 3,5%; Kulit Pisang; low carbon steel; organic inhibitor; banana skin
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives
T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Mrs Anis Wulandari
Date Deposited: 15 Jun 2017 07:05
Last Modified: 27 Dec 2018 06:44
URI: http://repository.its.ac.id/id/eprint/41699

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