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Synthesis and Characterization of New Triazole Derivatives as Corrosion Inhibitors of Carbon Steel in Acidic Medium

  • Salima K. Ahmed
  • Wassan B. Ali
  • Anees A. Khadom
Article
  • 16 Downloads

Abstract

Six novel triazole derivatives were synthesized from some substituted benzoic acid with thiocarbohydrazide by grinding method. The synthesized compounds were characterized by infra-red, 1H, and 13C-NMR spectra investigations. Synthesized triazole derivatives were tested and evaluated as corrosion inhibitors for low-carbon steel in 0.5 M HCl using weight loss technique. It was found that these compounds had a promising inhibitory action against corrosion of mild steel in acidic solution. Inhibitor with highest performance was evaluated at different temperature and inhibitor concentrations. The inhibition efficiency exceeded 96%. The excellent inhibitor performance was attributed to the formation of inhibitor adsorption films on the steel surface. The adsorption of inhibitor on steel surface followed the Langmuir adsorption isotherm. The experimental results were confirmed via theoretical quantum chemical calculations.

Keywords

Triazole Weight loss Corrosion inhibition Schiff bases Acidic solution 

Notes

Acknowledgements

The authors would like to thank the Department of Chemistry, College of Science, University of Diyala for continuous support and facilities.

Compliance with Ethical Standards

Conflict of interest

There are no conflicts of interest arising from the involvement of other parties either internal or external to the University.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Department of Chemistry, College of ScienceUniversity of DiyalaBaqubaIraq
  2. 2.Department of Chemical Engineering, College of EngineeringUniversity of DiyalaBaqubaIraq

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