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Azole Drug : A Novel Inhibitor for Corrosion

Author Affiliations

  • 1Department of Science and Humanities, Christian College of Engineering and Technology, Oddanchatram, Dindigul, Tamil Nadu, INDIA
  • 2 Head, Department of Chemistry, APA College for Women, Palani, Dindigul, Tamil Nadu, INDIA
  • 3 Department of Chemistry, APA College of Arts and Culture, Palani Dindigul, Tamil Nadu, INDIA

Res.J.chem.sci., Volume 5, Issue (2), Pages 11-16, February,18 (2015)


Heterocyclic compounds with atoms like N, O, and S are good corrosion inhibitors for metals and alloys. Molecules containing both N and S have good inhibition property when compared with molecules containing only N or S. A good inhibitor of corrosion should be alkaline. Azole drugs such as Fluconazole, Ketoconazole and Clotrimazole are good corrosion inhibitors due to the presence of aromatic rings, hetero-atoms and alkaline character. The rate of corrosion and inhibition efficiency of mild steel in the absence and presence of Fluconazole (FA) and Zn2+ containing 60ppm chloride ion has been studied by mass loss method. The inhibition efficiency of the system with 220ppm FA and 50ppm Zn2+ was high. AC impedance spectra, polarization study, Fourier Transform Infra Red spectra were analysed for knowing the nature of protective coating formed.


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