Corrosion inhibition and <i>in silico</i> toxicity assessment of imidazo[1,2-<i>a</i>]pyrimidine-Schiff base derivatives as effective and environmentally friendly corrosion inhibitors for mild steel.

ABSTRACT: This study reports the synthesis and corrosion inhibition evaluation of two imidazo[1,2-a]pyrimidine-Schiff base derivatives (IPY 1 and IPY 2) for mild steel (MS) in 1.0 M HCl solution. Using weight loss (WL), potentiodynamic polarization (PDP), and electrochemical impedance spectroscopy (EIS), both compounds demonstrated excellent inhibition efficiencies, 96.10% for IPY 2 and 94.22% for IPY 2, at 10^-3 M and 298 K. The effects of temperature and immersion time were also investigated, revealing stable performance over extended exposure. Thermodynamic analysis showed that both compounds followed the Langmuir adsorption isotherm, with high adsorption equilibrium constants (K _ads = 1.39 × 10⁵ M^-1 for IPY 2 and 1.48 × 10⁵ M

SUBMITTER: Azzouzi M 

PROVIDER: S-EPMC12004459 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature