Inhibition of corrosion of carbon steelin 0.5 m HClsolutions bysome pyridoprymidine derivatives

2014/07/20 by A. S. Fouda, A. El-Bendary, Fouda, A. +5
Engineering · Materials Science · #Carbon steel #Concrete Corrosion and Durability #Corrosion Behavior and Inhibition #Corrosion inhibition #EFM #EIS #HCl #Metal and Thin Film Mechanics #Pyridoprymidine derivative.

paper · doi:10.48317/imist.prsm/morjchem-v2i4.2086

openalex publication_date 2014/07/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/01

Abstract

The influence of some pyridoprymidine derivatives on the corrosion of carbon steel in 0.5 M HClwas investigated using weight loss,potentiodynamicpolarization,electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. The inhibition efficiency increases with increasing the inhibitor concentration, but decreases with raising the temperature. The inhibitors were adsorbed on the carbon steel surface following Temkin’s adsorption isotherm.The electrochemical results indicated that all the investigated compounds act as mixed-type inhibitors. Some thermodynamic parameters for activation and adsorption processes were determined and discussed. The mechanism of inhibition process was discussed in the light of the chemical structure and quantum-chemical calculations of the investigated compounds.

Related

• Imidazo[4,5-b]pyridines as a New Class of Corrosion Inhibitors for Mild Steel: Experimental and DFT Approach
• New Corrosion inhibition of mild steel by 7-bromopyrido[2,3-b]pyrazine-2,3(1H, 4H)-dithiol in 1M hydrochloric acid solution
• Synthesis, Characterization and Corrosion Inhibition Potential of Olefin Derivatives for Carbon Steel in 1M HCl: Electrochemical and DFT Investigations
• Potential Anticorrosive Effect of Hexamethylenediamine Penta(methylphosphonic) Acid on Carbon Steel in Hydrochloric Acid Solution
• Corrosion inhibitory action of mild steel in 1M HCl by Chlorophenicol