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Selected Bis-Thiadiazole: Synthesis And Corrosion Inhibition Studies On Mild Steel In Hcl Environment

Author

Listed:
  • ABBAS Z. SALMAN

    (Energy and Renewable Energies Technology Center, University of Technology, Industrial Street, Baghdad 10066, Iraq)

  • QUSAY A. JAWAD

    (Energy and Renewable Energies Technology Center, University of Technology, Industrial Street, Baghdad 10066, Iraq)

  • KHALID S. RIDAH

    (Energy and Renewable Energies Technology Center, University of Technology, Industrial Street, Baghdad 10066, Iraq)

  • LINA M. SHAKER

    (Energy and Renewable Energies Technology Center, University of Technology, Industrial Street, Baghdad 10066, Iraq)

  • AHMED A. AL-AMIERY

    (Energy and Renewable Energies Technology Center, University of Technology, Industrial Street, Baghdad 10066, Iraq)

Abstract

The inhibition effect of synthesized corrosion inhibitor namely 5,5′-(1,4-phenylene)bis(N-phenyl-1,3,4-thiadiazol-2-amine) (PBPA) on the corrosion of mild steel in 1-M hydrochloric acid environment are examined by gravimetric techniques at various temperature (303–343 K). The synthesized inhibitor concentrations are 0.1–0.5mM. The inhibition efficiency increased with the increase of the inhibitor concentration. The inhibition efficiency reached 94% at the highest studied concentration of 0.5mM for 5h of immersion time and 303K. Moreover, the inhibition efficiency decreased with the temperature increase. The adsorption of tested inhibitor molecules on the surface of mild steel follows the Langmuir adsorption isotherm. The studied inhibitor molecules showed excellent inhibition since PBPA molecules have nitrogen and sulfur atoms in addition to phenyl and thiadiazol rings which were linked together in conjugation system.

Suggested Citation

  • Abbas Z. Salman & Qusay A. Jawad & Khalid S. Ridah & Lina M. Shaker & Ahmed A. Al-Amiery, 2020. "Selected Bis-Thiadiazole: Synthesis And Corrosion Inhibition Studies On Mild Steel In Hcl Environment," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 27(12), pages 1-5, December.
    • Handle: RePEc:wsi:srlxxx:v:27:y:2020:i:12:n:s0218625x20500146
    DOI: 10.1142/S0218625X20500146
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