Synthesis of Thiophene Derivative and its Use as Zinc Metal Corrosion Inhibitor in Hydrochloric Acid Solution

Authors

  • Noora Assad Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.
  • Fatma Abdul-Hameed Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.
  • Emad Yousif Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.
  • Asim Balakit College of Pharmacy, University of Babylon, Babylon-Iraq.

Keywords:

Quinazolin, Imine, Inhibition efficiency, Zinc metal

Abstract

N-[(3-Bromo-2-methylthiophen-5-yl)methylene]-4-methoxyaniline) (5) has been synthesized and used as corrosion inhibitor for zinc metal in 2 M HCl at room temperature by using weight loss measurements. The obtained results showed that (5) is a good inhibitor and its inhibition efficiency (IE %) increased with the increase of inhibitor concentration. The surface coverage was 1.55 at 500 ppm inhibitor concentration; hence the optimum concentration was 500 ppm. Theoretical calculations investigate by studying the relationship between molecular structure and inhibition efficiency using semi-empirical molecular quantum calculations within the PM3 method as implemented in HyperChem package.

Author Biography

  • Fatma Abdul-Hameed, Department of Chemistry, College of Science, Al-Nahrain University, Baghdad-Iraq.



Published

2018-06-11

Issue

Section

Articles

How to Cite

[1]
“Synthesis of Thiophene Derivative and its Use as Zinc Metal Corrosion Inhibitor in Hydrochloric Acid Solution”, ANJS, vol. 18, no. 2, pp. 69–78, Jun. 2018, Accessed: Mar. 29, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/331

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