SciELO - Scientific Electronic Library Online

 
vol.24 número3Benzotriazole and tolytriazole as corrosion inhibitors of carbon steel 1008 in sulfuric acidInhibition of metallic corrosion using ficus extract índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Portugaliae Electrochimica Acta

versão impressa ISSN 0872-1904

Port. Electrochim. Acta v.24 n.3 Coimbra  2006

 

Corrosion inhibition of copper in 1 M HNO3 solution by N-phenyl Oxalic Dihydrazide and  Oxalic N-phenylhydrazide N’-phenylthiosemicarbazide

Lahcène Larabi,a* Omar Benali,b) Yahia Hareka)

 a) Département de chimie, Faculté des sciences, Université de Tlemcen-13000 Algérie

b) Département de biologie – Centre Universitaire de Saïda  -20000 Algérie

 

 

Abstract

This work is centered on the study of the corrosion inhibition of copper in 1 M HNOby N-phenyl oxalic dihydrazide (PODH) and oxalic  N-phenylhydrazide N’-phenylthiosemicarbazide (OPHPT) synthesized in our laboratory. The inhibition efficiency obtained by chemical (weight loss) and electrochemical (potentiodynamic polarization) techniques shows that these compounds are very good inhibitors. Polarization curves indicate that OPHPT acts as a mixed type inhibitor while PODH acts on the cathodic reaction. The adsorption of these inhibitors is found to obey Langmuir adsorption isotherm. The thermodynamic functions of adsorption and dissolution processes were calculated.

Keywords: acid, corrosion inhibitors, copper, thiosemicarbazide, hydrazide.

 

Texto disponível em PDF

Full text only in PDF format

 

 

Références

1. R. Gasparac, C.R. Martin, E.S. Lisac, Z. Mandic, J. Electrochem. Soc. 147 (2000) 991.        [ Links ]

2. G. Schmitt, Br. Corros. J. 19 (1984) 165.

3. A. Frignani, L. Tommesani, G. Brunoro, C. Monticelli, M. Fogagnolo, Corros. Sci. 41 (1999) 1205.

4. L. Tommesani, G. Brunoro, A. Frignani, C. Monticelli, M. Dal Colle, Corros. Sci. 39 (1997) 1221.

5. F. Zucchi, G. Trabanelli, M. Fonsati, Corros. Sci. 38 (1996) 2019.

6. S. Kertit, H. Essoufi, B. Hammouti, M. Benkaddour, J. Chim. Phys. 95 (1998) 2070.

7. R. Salghi, L. Bazzi, B. Hammouti, S. Kertit, Bull. Electrochem. 16 (2000) 272.

8. C. Fiaud, Proceedings of the 8th Eur. Symp. on Corrosion Inhibitors, Ann. . Ferrara 2 (1995) 929 .

9. H.P. Lee, K. Nobe, J. Electrochem. Soc. 133 (1986) 2035.

10. F.K. Grundwell, Electrochim. Acta. 37 (1992) 2707.

11. G.K. Gomma, J. Mater. Chem. Phys. 56 (1998) 27.

12. A.S. Fouda, I.S. Al-Naimi, Bull. Soc. Chim. Fr. 127 (1991) 35.

13. A.S. Fouda, A.K. Mohamed, H.A. Mostafa, J. Chim. Phys. 95 (1998) 45.

14. A.S. Fouda, M.M. Gouda, S.I. Abd-El-Rahman, Bull. Korean Chem. Soc. 21 (2000) 1085.

15. G. Quartarone, G. Moretti, T. Bellomi, G. Capobianco, A. Zingales, Corrosion 54 (1998) 606.

16. D. Tromans, R.H. Sun, J. Electrochem. Soc. 138 (1991) 3235.

17. T. Aben, D. Tromans, J. Electrochem. Soc. 142 (1995) 398.

18. A.K.P. Chu, A.J. Sukawa, J. Electrochem. Soc. 116 (1969) 1188.

19. R. Walker, Corrosion 31 (1975) 97.

20. G. Lewis, Corros. Sci. 22 (1982) 7-579.

21. N. Huynh, S.E. Bottle, I. Notoya, D.P. Schweinsberg, Corros. Sci. 42 (2000) 259.

22. G.P. Cicilo, B.M. Rosales, F.E. Varela, J.R. Vilche, Corros. Sci. 4 (1999) 1359.

23. E.S. Lisac, N. Galic, R. Gasparac, Corrosion 56 (2000) 1105.

24. Y. Harek, L. Larabi, Kem. Ind. 53 (2004) 55. 

25. M. Stern, Corrosion 14 (1958) 440.  

26. R.F.V. Villamil, P. Corio, J.C. Rubin, S.M.L. Agostinho, J. Electroanal. Chem. 472 (1999) 112.

27. R.F.V. Villamil, P. Corio, J.C. Rubin, S.M.L. Agostinho, J. Electroanal. Chem. 535 (2002) 75.

28. E. Kamis, F. Belluci, R.M. Latanision, E.S.H. El-Ashry, Corrosion 47 (1991) 677. 

29. R. Gasparac, C.R. Marfin, E. Stupnisek-Lisac, J. Electrochem. Soc. 147 (2000) 548.

30. S. Kertit, Thèse d’état, Rabat (1993).

31. T. Szauer, A. Brand, Electrochim. Acta 26 (1981) 1219.

32. S. Sankarapapavinasam, F. Pushpanaden, M. Ahmed, Corros. Sci. 32 (1991) 193.

33.  S. Li, S. Chem, S. Lei, H. Ma, R. Yu, D. Liu, Corros. Sci. 41 (1999) 1273.

 

 

*Corresponding author. E-mail address: larabi_lahcene@yahoo.fr.

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons