Corrosion Inhibition of Steel in Petroleum Medium by Ficus Carica Leaves Extract


  • Rana Afif Anaee Iraq-University of Technology
  • Mohammed H. Alzuhairi
  • Hiba Anwer Abdullah


Natural product, inhibition, green inhibitor.


This work involves study the corrosion inhibition of steel in petroleum medium using alcoholic extracted of Ficus carica leaves with four concentrations of extracted (1, 3, 5 and 7mL/L) at four temperatures over the range 50 – 80 oC. Inhibition efficiency IE% results show that 3 and 5 mL/L the best concentrations which they gave efficiencies in the range of 71 – 80%. Thermodynamic functions of adsorption processes were calculated from experimental polarization data and the interpretation of the results reveals that Ficus carica extract Ficus carica extract obey Langmuir adsorption isotherm. Polarization curves indicate that Ficus carica extract is a mixed type inhibitor. The small values of the equilibrium constant of the adsorption-desorption process Kads refer to physical adsorption process. The values of free energy of adsorption ΔGoads, enthalpy ΔHoads and entropy ΔSoads were negative indicating the spontaneous and exothermic adsorption process as well as Ficus carica extract retained the metal ions and reducing the dissolution of steel and the activated complex in the rate determining step denotes an association rather than a dissociation step.


Author Biography

Rana Afif Anaee, Iraq-University of Technology

Assistant Prof. in Materials Eng. Department


O. L. Riggs, Jr., C. Nathan (Ed.), “Corrosion Inhibitorsâ€, NACE, Houston, pp. 11, 1973.

Ambrish Singh, V. K. Singh, M. A. Quraishi, “Effect of fruit extracts of some environmentally benign green corrosion inhibitors on corrosion of mild steel in hydrochloric acid solutionâ€, J. Mater. Environ. Sci. Vol.1, No.3,pp.162-174, 2010.

C. A. Loto, R. T. Loto and A. P. I. Popoola, “Corrosion and plants extracts inhibition of mild steel in HClâ€, International Journal of the Physical Sciences, Vol.6, No.15, pp.3616-3623, 4 August, 2011.

M. A. Abu-Dalo, A. A.Othman, N. A.F. Al-Rawashdeh, “ Exudate gum from acacia trees as green corrosion inhibitor for mild steel in acidic Mediaâ€, Int. J. Electrochem. Sci., Vol.7, p.9303 – 9324, 2012.

S. S. Shivakumar and K. N. Mohana, “Centella asiatica extracts as green corrosion inhibitor for mild steel in 0.5 M sulphuric acid mediumâ€, Advances in Applied Science Research, Vol.3, No.5,pp.3097-3106, 2012.

Sangeetha M., Rajendran S., Sathiyabama J. and Prabhakar P., “Asafoetida Extract (ASF) as green Corrosion Inhibitor for Mild Steel in Sea Waterâ€, Int. Res. J. Environment Sci., Vol.1, No.5, pp.14-21, November 2012.

O. Benali, H. Benmehdi, O. Hasnaoui, C. Selles, R. Salghi, “Green corrosion inhibitor: inhibitive action of tannin extract of Chamaerops humilis plant for the corrosion of mild steel in 0.5M H2SO4â€, J. Mater. Environ. Sci., Vol.4, No.1, pp.127-138, 2013.

A. S Fouda, A.M.El-desoky, Hala M.Hassan, “Quinazoline derivatives as green corrosion inhibitors for carbon steel in hydrochloric acid solutionsâ€, Int. J. Electrochem. Sci., Vol.8, p.5866 – 5885, 2013.

K.Rajam, S. Rajendran, and R. Saranya, “Allium sativum (Garlic) extract as nontoxic corrosion inhibitorâ€, Journal of Chemistry, Article ID 743807, 4 pages, 2013.

Iloamaeke I. M, Onuegbu T. U., Umeobika U. C., Umedum N. L., “Green approach to corrosion inhibition of mild steel using emilia sonchifolia and vitex doniana in 2.5M HCl mediumâ€, International Journal of Science and Modern Engineering (IJISME) ISSN: 2319-6386, Vol.1, Issue 3, February 2013.

K.F. Khaled, and E. Ebenso, “Cerium salt as green corrosion inhibitor for steel in acid mediumâ€, Research on Chemical Intermediates, April 2013.

S.S. Shivakumar, K.N. Mohana, “ Studies on the Inhibitive Performance of Cinnamomum zeylanicum Extracts on the Corrosion of Mild Steel in Hydrochloric Acid and Sulphuric Acid Mediaâ€, J. Mater. Environ. Sci., Vol.4, No.3, pp.448-459, 2013.

Philippe Marcus and Florian Mansfeld, “Analytical Methods in Corrosion Science and Engineeringâ€, Published in 2006 by CRC Press, Taylor & Francis Group, Chapter 7.

Zaki Ahmad, “Principle of Corrosion Engineering and Corrosion Controlâ€, ISBN: 0750659246, Pub. Date: September 2006, Publisher: Elsevier Science & Technology Books, Chapter 6.

E. S. Ferreira, C. Giancomelli, F. C. Giacomelli, A. Spinelli, Mater. Chem. Phys. Vol.83, pp.129-134, 2004.

Li W. H., He Q., Zhang S. T., Pei C. L., and Hou B. R., “Some new triazole derivatives as inhibitors for mild steel corrosion in acidic mediumâ€, Journal of Applied Electrochemistryâ€, Vol. 38, pp.289-295, 2008.

G. Trabanelli, in: Mansfeld F (Ed.), Corrosion mechanism, Mercel Dekker, New York, 2006.

L. Malki Alaoui, S. Kertit, A. Bellaouchou, A. Guenbour, A. Benbachir, B. Hammouti, “Phosphate of Aluminum as Corrosion Inhibitor for Steel in H3PO4â€, Portugaliae Electrochimica Acta, Vol. 26, No.4, pp.339-347, 2008.

D.Bracher and A.D.Mercer ; British Corrosion Journal, Vol.3, pp.120, 1968.

Donnely B., Downie T.C., Grzeskowiak R., Hamburg H. R., and Short D., “The effect of electronic delocalization in organic groups in substituted thiocarbonyl RCSNH2 and related compounds on inhibition efficiencyâ€, Corr. Sci., Vol.18, pp. 109, 1978.

R.T.Vashi and V.A.Champaneri; Indian Journal Chemical Technology, Vol.4, pp.180, 1997.

V. S. Sastri ; “Corrosion Inhibitors, Principle and Application†, John Wiley and sons, New York, p. 33(1998).




How to Cite

Anaee, R. A., Alzuhairi, M. H., & Abdullah, H. A. (2014). Corrosion Inhibition of Steel in Petroleum Medium by Ficus Carica Leaves Extract. Asian Journal of Engineering and Technology, 2(3). Retrieved from