International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Corrosion Inhibition of Naturally Occurring Gum Exudates of Araucaria columnaris on Mild Steel in 1 M H2SO4

Author Affiliations

  • 1 Department of Chemistry, PSG College of Arts and Science, Coimbatore, Tamil Nadu, 641014, INDIA
  • 2 Department of Science and Humanities, SNS College of Technology, Coimbatore, Tamil Nadu, 641035, INDIA

Int. Res. J. Environment Sci., Volume 4, Issue (4), Pages 36-43, April,22 (2015)


The corrosion inhibitive performance of naturally occurring gum exudates of Araucaria columnaris (AC) and its synergistic effect with halides and metal cations on mild steel in 1 M HSO has been studied using weight loss and electrochemical methods. The inhibition efficiency was found to increase with increase in concentration and decrease with temperature. The adsorption of AC gum on the mild steel obeys Langmuir adsorption isotherm. Potentiodynamic polarization studies showed that AC gum acting as mixed type of inhibitor. The formation of protective layer on mild steel surface is confirmed by SEM analysis.


  1. Abdel Hameed R.S., Ranitidine Drugs as Non-Toxic Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Medium, Port. Electrochimi. Acta., 29(4), 273-285 2011)
  2. Umoren S.A., Eduo K.U.M. and Oguzie E.E., Corrosion Inhibition of Mild Steel in 1 M H2SO4 by Polyvinyl Pyrrolidone and Synergistic Iodide Additives., Port. Electrochimi. Acta., 26(6), 533- 546 (2008)
  3. Aprael S.Y., Anees A.K .and Rafal Wael K., Apricot juice as green corrosion inhibitor of mild steel in phosphoric acid., Alexandria Engineering Journal 52( 1), 129–135 (2013)
  4. Elayyachy M., Elkodadi M., Aouniti A, Ramdani A., Hammouti B., Malek F. and Elidrissi A., New bipyrazole derivatives as corrosion inhibitors for steel in hydrochloric acid solutions, Mater. Chem. Phy., 93, 281(2005)
  5. Popova A., Christov M., Raicheva S. and Sokoiva E., Adsorption and inhibitive properties of benzimidazole derivatives in acid mild steel corrosion, Corros. Sci., 461333 (2004)
  6. Garai S., Jaisankar P., Singh J.K. and A. Elango., A comprehensive study on crude methanolic extract of Artemisia pallens (Asteraceae) and its active component as effective corrosion inhibitors of mild steel in acid, Corros. Sci., 60, 193 (2012)
  7. Prabhu D. and P. Rao., Coriandrum sativum L: A novel green inhibitor for the corrosion inhibition of aluminium in 1.0 M phosphoric acid solution, J. Env. Chem Engg.,1, 676 (2013)
  8. Raja P.B., Qureshi A.K., Rahim A.A., Osman H. and Awang K., Neolamarckia cadamba alkaloids as eco-friendly corrosion inhibitors for mild steel in 1 M HCl media, Corros. Sci., 69, 292 (2013)
  9. Abu-Dalo M.A., Othman A.A. and Al-Rawashdeh N.A.F., Exudate Gum from Acacia Trees as Green Corrosion Inhibitor for Mild Steel in Acidic Media, Int. J. Electrochem. Sci., 7, 9303 (2012)
  10. Buchweishaija J. and Mhinzi G.S., Natural products as a source of environmentally friendly corrosion inhibitors: The case of natural free gum exudates from Acacia seyal var seyal” Portugaliae Electrochemica Acta., 26, 257- 265 (2008)
  11. Obot I.B., Umoren S.A., and Obi- Egbedi N.O., Corrosion inhibition and adsorption behaviour for aluminuim by extract ofAningeria robusta in HCl solution: Synergistic effect of iodide ions, J. Mat. Env. Sci.,2(1), 60- 71 (2011)
  12. Umoren S.A., Obot I.B., Ebenso E.E. and Okafor P.C., Eco-friendly Inhibitors from Naturally Occurring Exudates Gums for Aluminium Corrosion Inhibition in Acidic Medium, Port. Electrochimi. Acta., 26, 267- 282 2008)
  13. Umoren S.A., Obot I. B., Ebenso E. E. andObi- Egbedi N., Studies on the corrosion inhibition of Dacroydes edulis exudates gum for aluminium in acidic mediumPort. Electrochimi. Acta., 26, 199- 209 (2008)
  14. Saranya Devi K., Sruthy P. B., Anjana. J. C., Rathinamala J. and Jayashree S., Study on antibacterial activity of natural dye from the bark of Araucaria Columnaris and its application in textile cotton fabrics, Int J. App. Bio. Pharm. Technol., 4(3), 272 (2013)
  15. Ebenso E. E., Akamis H., Umoren S. A. and Obot I. B., Inhibition of Mild Steel Corrosion in Sulphuric Acid Using Alizarin Yellow GG Dye and Synergistic Iodide Additive, Int. J. Electrochem. Sci, 3, 1325 (2008)
  16. Parameswari K., Ph.D., Thesis, Bharathiyar University, Coimbatore, India, (2006)
  17. Umoren S.A., Solomon M. M., Udosoro I. I. and Udoh A.P., Synergistic and antagonistic effects between halide ions and carboxymethyl cellulose for the corrosion inhibition of mild steel in sulphuric acid solution, Cellulose., 17, 635 (2010)
  18. Umamathi T., Selvi J. A., Kanimozhi S. A., Rajendran S. and A. J. Amalraj., Effect of NaPO on the corrosion inhibition efficiency of EDTA: Zn2+system for carbon steel in aqueous solution, Ind. J. Chem Technol.,15 (6),560–565 (2008)
  19. Szauer T. and Brandt A., Mechanism of inhibition of electrode reactions at high surface coverages-II, Electrochim. Acta., 26, 1209 (1981)
  20. Arab S.T. and Turkustani A.M.A., Corrosion inhibition of steel in phosphoric acid by phenacyldimethyl sulfonium bromide and some of its -substituted derivatives, Port. Electrochimi. Acta., 24, 53 (2006)