Autors: Kamarska, K. V.
Title: Investigation of Rosemary Oil as Environmentally Friendly Corrosion Inhibitor of Aluminum Alloy
Keywords: Aluminum alloy, Corrosion inhibitor, Rosemary oil

Abstract: The inhibitory effect of Rosemary oil on the corrosion of aluminum alloy EN AW-2011 in 1M H2SO4 solution was studied by weight loss and electrochemical methods such as open circuit potential (OCP), linear sweep voltammetry (LSV) and linear polarization resistance (LPR). The inhibition efficiency increases with increasing the concentration and shows maximum inhibition efficiency (70.7 %) at optimum concentration (0.05 g.L-1). The linear polarization resistance measurements show that the presence of Rosemary oil in 1M H2SO4 solution influences polarization resistance increasing and corrosion current decreasing. The voltammetric curve shows that Rosemary oil reduces the anodic process. Open circuit potential results confirmed that organic compounds present in Rosemary oil can form a protective layer on aluminum surfaces. The inhibitive effect was probably caused by the adsorption of organic compounds such as 1,8-cineole, α-pinene, borneol, limonene, and myrcene on aluminum surfaces which are non-toxic and environmentally friendly. This study showed that the essential oil of Rosemary could be used as an environmentally friendly inhibitor of the corrosion of alloy EN AW-2011 in an acidic medium.

References

  1. Bashir,S.,Singh,G.andKumar,A.2019. Shatavari(Asparagusracemosus) as green corrosion inhibitor of aluminum in an acidic medium. Port. Electrochim. Acta., 38(2): 83-91.
  2. Bensabah, F., Houbairi, S., Essahli, M., Lamiri, A. and Naja, J. 2013. Chemical composition and inhibitory effect of the essential oil from Mentha spicata irrigated by wastewater on the corrosion of aluminum in 1 molar hydrochloric acid. Port. Electrochim. Acta., 31(4): 195-206.
  3. El-Azaly, A. 2019. Influence of Soybean (Glycine max) plant extract on corrosion of aluminum in 1M HCl. Int. J Electrochem. Sci., 14: 2714-2731.
  4. González-Minero, J., Bravo-Díaz, L. and Ayala-Gómez, A. 2020. Rosmarinus officinalis L. (Rosemary): An ancient plant with uses in personal healthcare and cosmetics. Cosmetics., 7(4): 77.
  5. Juergens, U., Engelen, T., Racké, K., Stöber, M., Gillissen, A. and Vetter, H. 2004. Inhibitory activity of 1,8-cineol (eucalyptol) on cytokine production in cultured human lymphocytes and monocytes. Pulmon. Pharmacol. Therap., 17: 281-287.
  6. Khadraoui, A., Khelifa, A., Touafri, L., Hamitouche, H. and Mehdaoui, R. 2013. Acid extract of Mentha pulegium as a potential inhibitor for corrosion of 2024 aluminum alloy in 1 M HCl solution. J. Mater. Environ. Sci., 4(5): 663-670.
  7. Мrad, M., Ben amor, Y., Dhouibi, I. and Montemor, F. 2017. Electrochemical study of polyaniline coating electropolymerized onto AA2024-T3 aluminum alloy: Physical properties and anticorrosion Performance. Synth. Met., 234: 145-153.
  8. Onukwuli, O., Omotioma, M. and Obiora-Okafo, I. 2020. Thermometric and gravimetric analyses of aluminum corrosion control in an HCl medium, using Ricinus communis extract. Port. Electrochim. Acta., 38(1): 19-28.
  9. Prabhu, D. and Padmalatha, R. 2013. Studies of corrosion of aluminum and 6063 aluminum alloy in phosphoric acid medium. Int. J. ChemTech. Res., 5(6): 2690-2702.
  10. Radošević, J., Kliškić, M. and Višekruna, A. 2001. Inhibition of corrosion of the Al-2.5Mg alloy by means of the third acidic phenolic subfraction of aqueous extract of rosemary. Kem Ind., 50(10): 537-542.
  11. Sangeetha, M., Rajendran, S., Sathiyabama, J. and Krishnaveni, A. 2013. Inhibition of corrosion of aluminum and its alloys by extracts of green inhibitors. Port. Electrochim. Acta., 31(1): 41-52.
  12. Sharma, S. and Sharma, Y. 2019. Cordia dichotoma as corrosion inhibitor for aluminum alloy (AA6063) in hydrochloric acid. Port. Electrochim. Acta., 37(1): 1-22.
  13. Umoren, S., Obot, I., Ebenso, E. and Okafor, P. 2007. Eco-friendly Inhibitors from naturally occurring exudate gums for aluminum corrosion inhibition in an acidic medium. Port. Electrochim. Acta., 26(3): 267-282.
  14. Wisdom, J., Kelechi, D. and Ugochukwu, J. 2018. Green inhibitor for corrosion of aluminum alloy AA 8011A in an acidic environment. Int. Res. J. Eng. Tech., 5(2): 121-124.

Issue

Nature Environment and Pollution Technology, vol. 23, pp. 1723-1727, 2024, Albania, https://doi.org/10.46488/NEPT.2024.v23i03.044

Цитирания (Citation/s):
1. Sabiha M., Kerroum Y., El Hawary M., Boudalia M., Bellaouchou A., Hammani O., Amin H.M.A., Investigating the Adsorption and Corrosion Protection Efficacy and Mechanism of Marjoram Extract on Mild Steel in HCl Medium, 2025, Molecules, issue 2, vol. 30, DOI 10.3390/molecules30020272, eissn 14203049 - 2025 - в издания, индексирани в Scopus
2. Kazemzadeh M., Khorammaslack N., Abedi P., Motahhari A., Kouhkan M., Farhadi K., Zein-oleic acid as a green, transparent and effective biofilm for copper corrosion protection, 2025, Pigment and Resin Technology, issue 0, pp. 1-11, DOI 10.1108/PRT-07-2025-0075, issn 03699420 - 2025 - в издания, индексирани в Scopus

Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus