Author/Authors :
Bouknana, Driss LC2AME: Laboratory of Applied Analytical Chemistry - Materials and Environment - Faculty of Sciences - University Mohammed first, Morocco , Hammouti, Belkheir LC2AME: Laboratory of Applied Analytical Chemistry - Materials and Environment - Faculty of Sciences - University Mohammed first, Morocco , Jodeh, Shehdeh Department of Chemistry - An-Najah National University, Nablus, State of Palestine , Sbaa, Mohamed Laboratory separation processes - Faculty of Science, University Ibn Tofail, Morocco , Lgaz, Hassane Laboratory separation processes - Faculty of Science, University Ibn Tofail, Morocco
Abstract :
This work is devoted to examining the effectiveness of aqueous extracts of olive flower pre-anthesis, anthesis and grain pollen olive (Olea europaea L.) on corrosion of mild steel in 1 M HCl solution; The weight loss measurements, polarization curves and electrochemical impedance spectroscopy (EIS) infrared spectroscopy methods were employed to evaluate corrosion rate and inhibition efficiency. The corrosion inhibition efficiencies of olive flower inflorescence pre-anthesis, anthesis and grain pollen are achieved 94%, 95.9%, and 94.8% in 1 M HCl, respectively. The inhibition efficiency is greatly reduced as the temperature is increased; the experimental results show that corrosion inhibition efficiency increases with concentration of the sample extract; polarization studies show that olive flower inflorescence pre-anthesis, anthesis and grain pollen extracts acts as a mixed inhibitor
Keywords :
Olive flower , Inhibitor , Corrosion , Steel , HCl solution
