Capparidaceae (Capparis
spinosa), is a common perennial shrub and woody plant, typically Mediterranean,
largely used in folk medicine in the Mediterranean countries including Morocco.
The effect of Capparis Spinosa (CSE) on the corrosion inhibition of carbon
steel in 1 M hydrochloric acid (HCl) solution was evaluated by several
analytical methods, among these are weight loss method, potentiodynamic
polarization and impedance spectroscopy (EIS).
Results showed that CSE inhibits the
corrosion of steel and the inhibition is more efficient at high concentration
of CSE. Results also showed that, the inhibition decrease at higher
temperature. Potentiodynamic polarization studies clearly reveal that
CSE acts as a cathodic inhibitor. The adsorption of Capparis Spinosa on carbon
steel was found to obey the Langmuir adsorption isotherm. The activation
energies and enthalpies of the corrosion process of carbon steel in acidic medium
of CSE were also calculated.
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Inhibitive_Action_of_Capparis_Spinosa_Extract_on_the_Corrosion_of_Carbon_Steel_in_an_Aqueous_Medium_of_Hydrochloric_Acid.pdf | 357.84 KB |