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Corrosion Inhibition Studies of Mild Steel by New Inhibitor in Different Corrosive Medium

Author Affiliations

  • 1Dept. of PG Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta 577451, INDIA
  • 2Dept. of Chemistry, Srinivas School of Engineering, Mukka, 575021, Mangalore, INDIA

Res.J.chem.sci., Volume 1, Issue (7), Pages 46-50, October,18 (2011)

Abstract

2 methyl -3- (trifluromethyl) aniline was tested as a corrosion inhibitor for mild steel in 1 M HCl and 0.5 M H2SO4 separately using mass loss and electrochemical studies. The inhibition efficiencies were evaluated at different concentrations of the inhibitor. The inhibition efficiency increased with increase in inhibitor concentration. Electrochemical studies showed that the inhibitor is of mixed type with a slight predominance of anodic character. The inhibitor was more active in HCl than in H2SO4. The maximum inhibition efficiency approached at 0.20 m M in both the acid medium. The surface morphology of mild steel in the presence and absence of inhibitor was studied by using SEM images.

References

  1. Trabanelli G., Inhibitors-An Old Remedy for a New Challenge, Corrosion., 47, 410 -419 (1991)
  2. Abd S.S., El-Rehim, Ibrahim M.A.M. and Khalid K.F., 4-Aminoantipyrine as an inhibitor of mild steel corrosion in HCl solution, J Appl. Electrochem, 29(5), 593-599 (1999)
  3. Abd S.S., El-Rehim, Relay S.A.M., Taha F., Saleh M.B. and Ahmed R.A., Corrosion Inhibition of Mild Steel in Acidic Medium using 2-amino Thiophenoland 2-Cyanomethyl Benzothiazole, J Appl. Electrochem.,31 (4), 429 435 (2001)
  4. Quraishi M.A., Sardar R. and Jamal., corrosion inhibition of mold steel in hydrochloric acid by some aromatic hydrzides, Mater. Chem. Phys., 71 (3) 30 -313 (2001)
  5. Rajappa S.K. and Venkatesha T.V., New condensation products as corrosion inhibitors for mild steel in an hydrochloric acid medium, Indian J Eng. Mater Sci,.9), 213 -217 (2002)
  6. Quraishi M.A. and Danish Jamal., Dianils as new and effective corrosion inhibitors for mild steel in acidic solutions, Mater. Chem. Phys., 78(3), 608 613 (2003)
  7. Prabhu R.A., Shanbhag A.V. and Venkatesha T.V., Influence of tramadol [2-[(dimethylamino) methyl]-1-(3- methoxyphenylcyclohexanolhydrate] on corrosion inhibition of mild steel in acidic media, J.App. Electrochem,37(4), 491-497 (2007)
  8. Singh Ashish Kumar and Quraishi M.A., Effect of Cefazolin on the corrosion of mild steel in HCl solution, Corros. Sci., 52(1), 152160 (2010)
  9. Ahamad I., Gupta C., Prasad R. and Quraishi M.A., An experimental and theoretical investigation of adsorption characteristics of a Schiff base compound as corrosion inhibitor at mild steel/hydrochloric acid interface, J Appl Electrochem, 40(12), 21712183 (2010)
  10. Ahamad Ishtiaque, Prasad Rajendra and Quraishi M.A., Adsorption and inhibitive properties of some new Mannich bases of Isatin derivatives on corrosion of mild steel in acidic media, Corros. Sci., 52 (4), 14721481 (2010)
  11. Aljourani J., Golozar M.A., and Raeissi K., The inhibition of carbon steel corrosion in hydrochloric and sulfuric acid media using some benzimidazole derivatives, Mater. Chem. Phys., 121(12), 320325 (2010)
  12. Shanbhag A.V., Venkatesha T.V., Prabhu R.A., Kalkhambkar R.G. and Kulkarni G.M., Corrosion inhibition of mild steel in acidic medium using hydrazide derivatives, J Appl. Electrochem,38 (3), 279287 (2008)
  13. Ying Yan., Weihua Li., Lankun Cai. and Baorong Hou., Electrochemical and quantum chemical study of purines as corrosion inhibitors for mild steel in 1 M HCl solution, Electrochim. Acta,53 (20), 59535960 (2008)
  14. Popova A., Raicheva S., Sokolova E. and Christov M.,Frequency Dispersion of the Interfacial Impedance at Mild Steel Corrosion in Acid Media in the Presence of Benzimidazole Derivatives, Langmuir, 12 (8), 2083-2089 (1996)