Anti-corrosive properties of argan oil on C38 steel in molar HCL solution

Abstract EN

Corrosion inhibition effect of Argan oil (AO) on corrosion of C38 steel in 1 M HCl solution was investigated using weight loss measurements, electrochemical polarization and EIS methods.

Results obtained reveal that Argan oil acts as a mixed inhibitor without modifying the hydrogen reduction mechanism.

The inhibition efficiency increases with increased Argan oil concentration to attain a maximum value of 81 % at 3 g / L.

The inhibition efficiency of Argan oil decreases with the rise of temperature.

Argan oil is adsorbed on the steel surface according to Langmuir isotherm model.

The parameters (E a, DH a, D and DS a) were estimated and discussed.

The fundamental thermodynamic functions were used to glean important information about Argan oil’s inhibitory behavior.