• P. Leema Sophie
• Noreen Antony

The present study involves the inhibition of corrosion of carbon steel by the plant extract Lippia Nodiflora with 50 ppm of Mn2+ having 180 ppm of Cl- ion. It is studied by the weight loss method at 303 K-333 K. The energy of activation and the thermodynamic parameters were calculated and evaluated from the results of temperature studies. The result has proved that the LNLE is a good inhibitor of corrosion of carbon steel in aqueous medium and revealed that the inhibition efficiency depends on both the concentration of the inhibitor and the temperature of the system. The effectiveness and characteristics of the adsorption process of the LNLE were studied with Langmuir, El-Awady, Temkin, Frumkin, Flory-Huggins and Freundlich adsorption isotherms and were found to be consistent with all isotherms.

corrosion, inhibition, temperature studies, adsorption isotherm, Lippia Nodiflora

"Kinetic, Thermodynamic and Adsorption Isotherm Analysis for the Corrosion Inhibition of Carbon Steel in Aqueous Media by Lippia Nodiflora", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.217-229, April-2019, Available :http://www.jetir.org/papers/JETIR1904232.pdf

"Kinetic, Thermodynamic and Adsorption Isotherm Analysis for the Corrosion Inhibition of Carbon Steel in Aqueous Media by Lippia Nodiflora", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp217-229, April-2019, Available at : http://www.jetir.org/papers/JETIR1904232.pdf