UAE Scrophularia Arguta (Malisah) extract as a corrosion inhibitor for mild steel in HCl solution

The effect of aqueous extract of uae scrophularia arguta (malisah) on the corrosion inhibition of mild steel in 1.0 m hcl solution was investigated by weight loss experiments at temperatures ranging from 303 to 343 k. the percentage inhibition increased with the increase of the concentration of the inhibitor and decrease with the increase of temperature reaching 93.43 % with a concentration of 2.0000 g/l at 303 k. the thermodynamic parameters for the adsorption of this inhibitor on the metal surface were calculated using the temkin adsorption isotherm. the aqueous scrophularia arguta leaves extract was found to be an excellent potential corrosion inhibitor.