2,5-Bis(4-pyridyl)-1,3,4-oxadiazole as Efficient Organic Corrosion Inhibitor for Carbon Steel in Normal Hydrochloric Acid Medium: Influence of the Temperature on the Inhibition Process

2024/05/12 by JAFIL, H., Ech-Chihbi, E., NADI, I. +3

paper · doi:10.48317/imist.prsm/morjchem-v12i3.48615

Abstract

2,5-Bis(4-pyridyl)-1,3,4-oxadiazole (4-POX) has been synthesized and studied as organic corrosion inhibitor for carbon steel (CS) in 1M HCl solution using the weight loss technique in the temperature range from 303 to 333 K. The obtained results confirmed the excellent anticorrosion properties of 4-POX and the inhibition efficiency increased with increasing inhibitor concentration and decreased with increasing temperature medium. A mixture of physisorption and chemisorption is proposed for the corrosion inhibition mechanism and the process followed the kinetic/thermodynamic model of Langmuir in the temperature range from 303 to 343 K. The adsorption and kinetic parameters for CS/4-POX/1 M HCl system were calculated from experimental gravimetric data and the interpretation of the results are given.

Related

• Thermodynamic properties of 2,5-bis(4-dimethylaminophenyl)-1,3,4-oxadiazole as corrosion inhibitor of carbon steel in hydrochloric acid pickling environment
• Corrosion inhibition of mild steel by benzimidazole-based organic compounds in a 1M HCl environment: a review
• Inhibition of corrosion of carbon steelin 0.5 m HClsolutions bysome pyridoprymidine derivatives
• Corrosion Protection of Mild Steel in Hydrochloric Acid at 308 K using Benzimidazole Derivatives: Weight Loss, Adsorption and Quantum Chemical Studies
• Inhibition of Carbon Steel Corrosion in HCl Media by Lipid Oil Melia