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http://dx.doi.org/10.14773/cst.2011.10.1.013

Thiadiazolopyrimidines as Acid Corrosion Inhibitors for Mild Steel  

Chitra, S. (Dept. of Chemistry, P.S.G.R. Krishnammal College for Women)
Parameswari, K. (Dept. of Chemistry, P.S.G.R. Krishnammal College for Women)
Vidhya, M. (Dept. of Chemistry, P.S.G.R. Krishnammal College for Women)
Kalishwari, M. (Dept. of Chemistry, P.S.G.R. Krishnammal College for Women)
Selvaraj, A. (Dept. of Chemistry, CBM College)
Publication Information
Corrosion Science and Technology / v.10, no.1, 2011 , pp. 13-23 More about this Journal
Abstract
The inhibitive action of thiadiazolopyrimidines on mild steel in 1 M $H_{2}SO_{4}$ has been studied using weight loss, gasometric studies and electrochemical polarization and AC impedance measurements. The effect of temperature on the corrosion behaviour of mild steel in 1 M $H_{2}SO_{4}$ with optimum concentration of inhibitors was studied in the temperature ranging from 313-333K The adsorption of the inhibitor on the surface of mild steel was found to be exothermic, spontaneous and followed the mechanism of physisorption. The adsorption of these compounds on mild steel surface was found to obey Langmuir adsorption isotherm. The protective film formed on the surface of mild steel by the adsorption of inhibitor in 1 M $H_{2}SO_{4}$ solution was confirmed by optical microscopic technique. Synergistic effect of halide ions on mild steel in 1 M $H_{2}SO_{4}$ was studied by weight loss technique.
Keywords
corrosion; inhibitor; thiadiazolopyrimidines; mild steel;
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  • Reference
1 F. Bentiss, M. Traisnel, and M. Lagrenee, Corros. Sci., 42, 127 (2000).   DOI   ScienceOn
2 G. Trabanelli, Corrosion, 47, 410 (1991).   DOI
3 S. A. M. Refacy, Appl. Surf. Sci., 240, 396 (2005).   DOI   ScienceOn
4 M. A. Quraishi and H. K. Sharma, J. Appl. Electrochem, 35, 33 (2005).   DOI   ScienceOn
5 A. Ashassi-Sorkhavi, B. Shaaban, and D. Seifzadeh, Appl. Surf. Sci., 239, 239 (2005).
6 M. Bouklah, A. Ouassini, B. Hammouti, and A. E. Idrissi, Appl. Surf. Sci., 252, 2178 (2006).   DOI   ScienceOn
7 F. Bentiss, M. Traisnel, L. Gengembree, and M. Lagrenee, Appl. Surf. Sci., 161, 194 (2000).   DOI   ScienceOn
8 A. K. Pandhy, M. Bardhan, and S. Panda, Indian J. Chem., 42B, 910 (2003).
9 G. Schmitt, British Corros. J., 19, 99 (1984).
10 I. Dehri and M. Ozcan, Mater. Chem. Phys., 98, 316 (2006).   DOI   ScienceOn
11 F. M. Donahue and K. Nobe, J. Electrochem. Soc., 112, 886 (1965).   DOI
12 E. E. Ebenso, H. Alemu, S. A. Umoren, and I. B. Obot, Int. J. Elctrochem. Sci., 3, 1325 (2008).
13 J. Y. Zou and B. H. Yang, Mater. Prot., 21, 4 (1988).
14 M. Sahin, S. Bilgic, and H. Yilmaz, Appl. Surf. sci., 195, 1 (2002).   DOI   ScienceOn
15 J. H. Sluyters, RECUEIL, 79, 1092 (1960).
16 A. Selvaraj and R. S. Subrahmanya, J. Electrochem. Soc., 32, 193 (1988).
17 A. Selvaraj and R. S. Subrahmanya, J. Electrochem. Soc., 32, 225 (1987).
18 K. E. Heusler, J. Electrochem. Soc., 62, 529 (1958).
19 J. O. M. Bockris, B. Drazic, and A. R. Drazic, Electrochem. Acta, 4, 325 (1961).   DOI   ScienceOn
20 Z. A. Iofa, V. V. Batrokov, and Cho NgokBa, Zaschita Metallor, 1, 56 (1995).
21 L. Niu, H. Zhang, F. Wei, S. Wa, X. Cao, and P. Lui, Appl. Surf. Sci., 252, 1634 (2005).   DOI   ScienceOn
22 S. A. Umoren and E. E. Ebenso, Mater. Chem. Phys., 106, 387 (2007).   DOI   ScienceOn
23 M. A. Quraishi, A. S. Mideen, M. A. W. Khan, and M. Ajmal. Indian, J. Chem. Technol., 1, 329 (1994).
24 S. Muralidharan, M. A. Quraish, and V. K. Iyer, Corros. Sci., 37, 1739 (1995).   DOI   ScienceOn