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Investigation of triazole derived Schiff bases as corrosion inhibitors for mild steel in hydrochloric acid medium

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Abstract

3,5-Diamino-1,2,4-triazole Schiff base derivatives and their inhibition efficiency, based on the effect of changing functional groups, were reported to establish a relationship between inhibitor efficiency and molecular structure using weight loss method, electrochemical and Fourier transform infrared spectral techniques. It was found that the molecules containing more electron donating groups have higher inhibition efficiency than the corresponding compounds with low electron donating groups. The results indicate that the order of inhibition efficiency of the triazole and its Schiff bases in solution and the extent of their tendency to adsorb on mild steel surfaces are as follows: vanilidine 3,5-diamino-1,2,4-triazole > furfuraldine 3,5-diamino-1,2,4-triazole > anisalidine 3,5-diamino-1,2,4-triazole > 3,5-diamino-1,2,4-triazole.

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Acknowledgements

The Financial support by University Grants Commission (UGC) (F. No. 32-206/2006 (SR)) and Jawaharlal Nehru Memorial Fund (JNMF), New Delhi, India are greatly acknowledged.

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Authors and Affiliations

  1. Department of Chemistry, Periyar University, Salem, 636 011, Tamilnadu, India

    D. Gopi & K. M. Govindaraju

  2. Department of Physics, Periyar University, Salem, 636 011, Tamilnadu, India

    L. Kavitha

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  1. D. Gopi
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  2. K. M. Govindaraju
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  3. L. Kavitha
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Correspondence to D. Gopi.

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Gopi, D., Govindaraju, K.M. & Kavitha, L. Investigation of triazole derived Schiff bases as corrosion inhibitors for mild steel in hydrochloric acid medium. J Appl Electrochem 40, 1349–1356 (2010). https://doi.org/10.1007/s10800-010-0092-z

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  • DOI: https://doi.org/10.1007/s10800-010-0092-z

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