Open Access

Studies on Mild Steel Corrosion Inhibition byMillingtonia Hortensis Extract in 1N Sulphuric Acid Medium

S. Kulandai Therese, kulandaifspm@gmail.com
Department of Chemistry, Nirmala College for Women, Coimbatore, TN, India. V. G. Vasudha Department of Chemistry, Nirmala College for Women, Coimbatore, TN, India.

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Abstract

Efficiency of acid extracts of dry leaves of Millingtonia Hortensis(MH) as corrosion inhibitor for mild steel in H₂SO₄ medium is investigated in the present study by weight loss method and FT-IR Spectroscopy. The results indicate MH leaves to be good inhibitor having efficiency as high as 98.99% at 2% inhibitor concentration. Inhibitor efficiency increases with concentration of the extract. Temperature studiesshow that inhibition efficiency decreases with increase in temperature. Adsorption isotherms reveal that it obeys Langmuir isotherm.

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Reference

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Behpour, M., Ghoreishi, S. M., Khayatkashani, M. and  Soltani, N., The effect of two oleo-gum resin exudate from Ferula assa-foetida and Doremaammoniacum on mild steel cor r osion in acidic media, Corros. Sci., 53, 2489-2501 (2011). 

http://dx.doi.org/10.1016/j.corsci.2011.04.005

Buchweishaija, S. J., Phytochemicals as green corrosion inhibitors in various corrosive media: A review, Tanz. J.  Sci., 35, 77-92 (2009).

Deng, S., Li, X. and Fu, H., Two pyrazine derivatives as inhibitors of the cold rolled steel corrosion in hydrochloric acid solution, Corros. Sci., 53, 8 2 2 - 8 2 8 (2011). 

http://dx.doi .org/10.1016/j.corsci.2010.11.019

Gunavathy,  N.  and  Murugavel,  S.  C.,  Corrosion Inhibition of Mild Steel in acid medium using  MUSA Acuminata  Flower  extr act,  J.  Environ. Nanotecnol., 2(4), 21-27 (2013).

http://dx.doi.org/10.13074/jent.2013.12.132049

Hegazy, M. A., Ahmed, H. M., El-Tabei., A. S., Investigation of the inhibitive effect of p-substituted 4-(N,N,N-dimethyl dodecyl ammonium bromide) benzylidene- benzene-2-yl-amine on corrosion of carbon steel pipelinesin acidicmedium, Corros. Sci., 53, 671- 678 (2011). 

http://dx.doi.org/10.1016/ j.corsci.2010.10.004

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

Li, X., Deng, S. and Fu, H., Inhibition by tetradecylpyridinium bromide of the corrosion of aluminium in hydrochloric acid solution, Corros. Sci., 53, 1529-1536 (2011). 

http://dx.doi.org/10.1016/ j.corsci.2011.01.032

Singh, A. K. and Quraishi, M. A., Investigation of the effect of disulfiram on corrosion of mild steel in hydrochloric acid solution, Corros. Sci., 53, 1288-1297 (2011).

http://dx.doi.org/10.1016/j.corsci.2011.01.002

Tan, K. W. and Kassim, M. J., A correlation study on the phenolic profiles and corrosion inhibition properties of mangrove tannins (Rhizophoraapiculata) as affected by extraction solvents, Corros. Sci., 53, 569-574 (2011).

http://dx.doi.org/10.1016/j.corsci.2010.09.065

Vasudha, V. G. and  Saratha, R., Studies on inhibition of acid corrosion of Mild Steel by Terminaliacatappa (Tropical Almond) Leaves, Oriental J. Chem., 27, 1165-1171 (2011).