Study of Active Compounds from Red Cabbage (Brassica oleracea var. capitata f. Rubra) Extract as a Green Corrosion Inhibitor for API 5L Grade X60 Steel in NaCl 3.5% Environment

Abstract:

Red cabbage extract has been investigated in this work whether it would perform as a green corrosion inhibitor for API 5L grade X60 steel in 3.5% NaCl environment. Based on the FTIR and LC-MS analysis the active compounds of corrosion inibitor were hydroxyl, carbonyl and cyanidin. The Tafel polarization test results showed that red cabbage extract performed as a mixed corrosion inhibitor and the Electrochemical Impedance Spectroscopy test results showed that the impedance, polarization resistance and capacitive resistance of steel surface increased with the addition of red cabbage corrosion inhibitor. Based on evaluation of the testing results red extract red cabbage performed significant corrosion inhibition effect. The inhibitor efficiency increases with increased corrosion inhibitor concentration and the optimum inhibitor percent efficiency achieved 81%. The adsorption mechanism of red cabbage corrosion inhibitor can be considered as a Langmuir Isotherm

• Periodical: Applied Mechanics and Materials (Volume 842)
• Pages: 24-30
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.842.24
• Online since: June 2016
• Authors: Andi Rustandi*, M. Akbar Barrinaya
• Keywords: API 5L Grade X60, Corrosion Inhibitor, EIS, Red Cabbage Extract, Tafel Polarization

References

[1] G. H. Koch, Corrosion Costs and Preventive Strategies in the United States, US: NACE International, (2002).

[2] K. Devarayan, Green Inhibitors for Corrosion of Metals: A Review, Che Sci Rev Lett, pp.1-8, (2012).

[3] Rustandi, A., The Use of Mixture of Piper Betle and Green Tea as a Green Corrosion Inhibitor for API X-52 Steel in Aerated 3. 5 % NaCl Solution at Various Rotation Rates, Advanced Materials Research, pp.5418-5425, (2012).

DOI: 10.4028/www.scientific.net/amr.383-390.5418

[4] W. Bogaerts, Use of Different Natural Extracts from Tropical Plants as Green Inhibitors for Metals, dalam Clean Technology Conference and Expo, Houston, (2009).

[5] H. Chang, Characterization of Natural Dye Extracted from Wormwood and Purple Cabbage for Dye-Sensitized Solar Cells, Hindawi Publishing Corporation, (2013).

DOI: 10.1155/2013/159502

[6] J. K. Ahmed, Anthocyanins in Red Beet Juice Act as Scavengers for Heavy Metals Ions such as Lead and Cadmium, International Journal of Science and Technology, pp.269-274, (2013).

[7] W. Wiczkowski, Red cabbage anthocyanins: Profile, isolation, identification, and antioxidant activity, Food Research International, p.303–309, (2013).

DOI: 10.1016/j.foodres.2012.12.015

[8] T. K. Gachovska, Enhanced Anthocyanin Extraction from Red Cabbage Using Pulsed Electric Field Processing, John Wiley Inc. Journal of Food Science, p. E323–E329, (2010).

DOI: 10.1111/j.1750-3841.2010.01699.x

[9] S. d. P. Teresa, LC–MS analysis of anthocyanins from purple corn cob, Journal of the Science of Food and Agriculture, p.1003 – 1006, (2002).

DOI: 10.1002/jsfa.1143

[10] G. McDougall, Anthocyanins from red cabbage – stability to simulated gastrointestinal digestion, Phytochemistry, p.1285–1294, (2007).

DOI: 10.1016/j.phytochem.2007.02.004

[11] N. Odewunmi, Watermelon waste products as green corrosion inhibitors for mild steel in HCl solution, Journal of Environmental Chemical Engineering, p.286–296, (2014).

DOI: 10.1016/j.jece.2014.10.014

[12] P. Mourya, Corrosion inhibition of mild steel in acidic solution by Tagetes erecta (Marigold flower) extract as a green inhibitor, Corrosion Science, p.352–363, (2014).

DOI: 10.1016/j.corsci.2014.04.036