Inhibition of Mild Steel Corrosion in 0.25 M Sulphuric Acid Solution by Imatinib Mesylate | Zendy

K. N. Mohana | Zendy; S. S. Shivakumar | Zendy; A. M. Badiea | Zendy

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Inhibition of Mild Steel Corrosion in 0.25 M Sulphuric Acid Solution by Imatinib Mesylate

Author(s) -

K. N. Mohana,

S. S. Shivakumar,

A. M. Badiea

Publication year - 2011

Publication title -

journal of the korean chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.209

H-Index - 20

eISSN - 2234-8530

pISSN - 1017-2548

DOI - 10.5012/jkcs.2011.55.3.364

Subject(s) - adsorption , langmuir adsorption model , chemisorption , gravimetric analysis , imatinib mesylate , homo/lumo , corrosion , chemistry , langmuir , gibbs free energy , materials science , nuclear chemistry , inorganic chemistry , metallurgy , organic chemistry , thermodynamics , imatinib , myeloid leukemia , physics , molecule , immunology , biology

The corrosion inhibition of imatinib mesylate (IMT) on mild steel in 0.25 M sulphuric acid has been studied using gravimetric and potentiodynamic polarization techniques at various concentrations of inhibitor, temperature and fluid velocities. The results obtained showed that, inhibition efficiency (% IE) increases with increasing concentration of the inhibitor. The adsorption process on mild steel surface follows Langmuir adsorption isotherm. The values of Gibbs free energies of adsorption obtained suggest that, the adsorption process of IMT on mild steel is chemisorption. Thermodynamic parameters were evaluated and discussed. The electron orbital density distribution of HOMO and LUMO of IMT was used to discuss the inhibition mechanism. FT-IR spectroscopy and SEM images were used to analyze the surface adsorbed film

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