Journal of the Serbian Chemical Society 2006 Volume 71, Issue 10, Pages: 1073-1082
https://doi.org/10.2298/JSC0610073S
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The inhibition action of N-furfuryl-N'-phenyl thiourea on the corrosion of mild steel in acid media
Shetty Divakara S. (Department of mechanical engineering, Manipal institute of technology, Manipal)
Shetty Prakash (Department of chemistry, Manipal institute of technology, Manipal)
Nayak Sudhaker H.V. (Department of metallurgical and materials engineering, National institute of technology, Surathkal)
The inhibiting effect of N-furfuryl-N'-phenyl thiourea (FPTU) on the corrosion of mild steel in aqueous solutions of 0.05 and 0.1MHCl, as well as 0.025 and 0.05 M H2SO4 has been demonstrated using the potentiodynamic polarization technique. The polarization data showed that FPTU acts as an efficient anodic inhibitor for mild steel in both acid solutions. Avery high inhibition efficiency was evidenced in both acid solutions and it was found to vary with the concentration of the inhibitor and temperature. The obtained kinetic parameters of adsorption revealed spontaneous adsorption and a strong interaction of FPTU with the mild steel surface. .
Keywords: N-furfuryl-N'-phenyl thiourea, mild steel, corrosion, corrosion inhibitor, hydrochloric acid, sulphuric acid