Corrosion inhibition performance of a novel cationic surfactant for protection of carbon steel pipeline in acidic media

The corrosion inhibiting action of a novel cationic surfactant on the dissolution of carbon steel (C-steel) in 1M HCl has been investigated using weight loss, electrochemical impedance spectroscopy and potentiodynamic polarization techniques. The effect of inhibitor concentration and temperature on the corrosion rate of C-steel was determined from weight loss approach. While the electrochemical and potentiodynamic measurements were used to explain the behavior of C-steel at a temperature 20 °C. Adsorption of the cationic surfactant on the surface of the C-steel pipeline is a mixture of physical and chemical adsorption and obeys Langmuir isotherm. The thermodynamic data of activation and adsorption were calculated and explained.