Mild Steel Corrosion Inhibition by Cucurbitamaxima Plant Extract in Hyddrochloric Acid Solution
J. Environ. Nanotechnol., Volume 3, No 1 (2014) pp. 16-22
Abstract
The inhibitive action of PCM (peel of Cucurbita maxima) on mild steel corrosion in 1N HCl was studied using weight loss method and FT IR techniques. The calculated results of corrosion rates of steel and the inhibition efficiency of plant extract show that the extract functions as a good corrosion inhibitor and IE increased with extract concentration. Maximum IE of 93 % was obtained at 2 % v/v concentration of the plant extract. Temperature studies revealed an increase in IE with rise in temperature. The adsorption of PCM extract was found to follow Langmuir's adsorption model at all concentrations and temperatures studied.
Full Text
Reference
Deng, S. and Li, X., Inhibition by Ginkgo leaves extract of the corrosion of steel in HCl and H SO solutions, Corros. Sci., 55, 407–415 (2012).
http://dx.doi.org/10.1016/j.corsci.2011.11.005
Gunavathy, N. and Murugavel, S. C., Corrosion Inhibition of Mild Steel in acid medium using MUSA Acuminata Flower extract, J. Environ. Nanotecnol., 2(4), 21-27 ( 2 0 1 3 ).
http://dx.doi.org/10.13074/jent.2013.12.132049
Hussin, M. H. and Kassim, M. J., The corrosion inhibition and adsorption behavior of Uncaria gambir extract on mild steel in 1 M HCl, Mater. Chem. Phys., 125, 461–468 (2011).
http://dx.doi.org/10.1016/j.matchemphys.2010.10.032
Jothi, S. and Ravichandran, J., Inhibitive effect of leaves extract of coccinia indica on the corrosion of mild steel in hydrochloric acid, J. Environ. Nanotecnol., 2(4), 45-50 (2013).
http://dx.doi.org/10.13074/jent.2013.12.132042
Saleh, R. M., Ismail, A. A. and El Hosary, A. A., Corrosion inhibition by naturally occurring substances. vii. the effect of aqueous extracts of some leaves and fruit peels on the corrosion of steel, Al, Zn and Cu in acids, Br. Corros. J., 17, 131–135 (1982).
http://dx.doi.org/10.1179/000705982798274345
Satapathy, A. K., Gunasekaran, G., Sahoo, S. C., Amit, K. and Rodrigues, P.V., Corrosion inhibition by Justicia gendarussa plant extract in hydrochloric acid solution, Corros. Sci., 51, 2848-2856 (2009).
http://dx.doi.org/10.1016/j.corsci.2009.08.016
Srivastava, K., Srivastava, P., Studies on plant materials as corrosion inhibitors, Br. Corros. J., 16, 221–223 (1981).
http://dx.doi.org/10.1179/000705981798274788
Udaya Prakash, N. K., Bhuvaneswari, S., Balamurugan, A., Radhika, B., Bhagya, R., Sripriya, N., Prameela, L., Sarojini, S., Vigneshwari, R., Chandran, M. and Arokiyaraj, S., Studies on Phytochemistry of 100 Plants in Chennai, India, Br. J. Pharma. Res., 3, 407-419 (2013).
Wang, X. M., Yang, H. Y., and Wang, F. H., Inhibition performance of a gemini surfactant and its co- adsorption effect with halides on mild steel in 0.25 M H2SO4 solution, Corros. Sci., 55, 145–152 (2012).
http://dx.doi.org/10.1016/j.corsci.2011.10.008
