Inhibition of Mildsteel Corrosion in Acid Media By N-(2-Thiophenyl)-N-Phenyl Thiourea

Shetty, Divakara S and Shetty, Prakash and Nayak, Sudhakar H V (2006) Inhibition of Mildsteel Corrosion in Acid Media By N-(2-Thiophenyl)-N-Phenyl Thiourea. Journal of the Chilean Chemical Society, 51 (2). pp. 849-854. ISSN 0717-9707

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The corrosive behavior of mild steel in 0.05 M and 0.1M HCl, 0.025 M and 0.05 M H2SO4 solutions containing different concentrations of N-(2-thiophenyl)-N/-phenyl thiourea (TPTU) was investigated using potentiodynamic polarization technique. The results obtained reveal that TPTU is an efficient anodic inhibitor in the acid environment and it is more effective in reducing corrosion of mild steel in HCl than in H2SO4 media. The adsorption of the inhibitor on the mild steel surface in both acids obeys the Temkins’ adsorption isotherm. The thermodynamic parameters of adsorption deduced reveal a strong interaction and spontaneous adsorption of TPTU on the mild steel surface. The influence of temperature and inhibitor concentration on the corrosion of mild steel has also been investigated.

Item Type: Article
Additional Information: © Sociedad Chilena de Química
Subjects: Engineering > MIT Manipal > Chemistry
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 11 Jan 2012 04:02
Last Modified: 11 Jan 2012 04:02

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