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Since the corrosion protection of mild steel samples in corrosive media (1 M of hydrochloric acid [HCl]) was cheap and successful, the ethanol extract of  Posidonia oceanica  leaves based on polyvinylpyrrolidone ( P. oceanica /PVP) was analyzed using the weight reduction, the open circuit potential, and the potentiodynamic polarization methods. The obtained results explained that the productivity of hindrance increments had the greatest restraint efficiency of ∼81% at 1,000 ppm, as the concentration of the extract increased. Liable for adsorption as a thin layer on the surface of mild steel to protect it, the creation of kaolin-traced phenolic and polysaccharide compounds was confirmed by the Fourier transform infrared spectroscopy analysis. A scanning electron microscope was used to evaluate the inhibitive action of  P. oceanica /PVP against steel in corrosive media and the change in surface morphology was considered. It is presumed that the ethanol removed from the  Posidonia oceanica  leaves can fill in as a compelling consumption inhibitor for gentle steel in HCL solution (1 M).

green processing and synthesis

Study of the corrosion-inhibiting activity of the green materials of the  Posidonia oceanica  leaves’ ethanolic extract based on PVP in corrosive media (1 M of HCl)