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Volumen II - SAM

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4. CONCLUSIONES<br />

El sulfato es el anión más agresivo, incluso cuando en el electrolito están presentes otros<br />

contaminantes.<br />

El proceso de corrosión del bronce es bastante diferente del cobre puro. En los bronces estudiados la<br />

presencia de sulfato, si bien favorece la disolución del bronce, origina la formación de una capa de<br />

compuestos de estaño que protege al material.<br />

La acción agresiva de los contaminantes estudiados se aumenta a mayor tiempo de inmersión y<br />

mayor concentración.<br />

REFERENCIAS<br />

1. Aramendia, P., Fernández Prini R., Gordillo G., “Buenos aires en Buenos Aires?”, Ciencia Hoy 6, 31,<br />

pp 55-64 (1995).<br />

2. Bogo, H., Martín Negri, R., San Román, E., “Continuous measurements of gaseous pollutants in Bs.<br />

As. City” Atmospheric Environment, 33, pp. 2587-2598 (1999).<br />

3. Smichowski P., Gómez, D. R., Dawidowski L. E., Giné, M. F., Sanchez Bellato, A. C., Reich, S. L.,<br />

“Monitoring trace metals in urban aerosols from Buenos Aires city. Determination by plasma-based<br />

techniques”, J. Environ. Monit., 6, pp 286-294 (2004).<br />

4. Meakin, J.D., Ames, D.L., Dolske, D.A., ¨Degradation of monumental bronzes¨, Atmospheric<br />

Environment, 26 A, no. 2, pp 207-215 (1992).<br />

5. Lobnig, R.E., Frankenthal R.P., Siconolfi, D.J., Sinclair, J.D., “The effect of submicron ammonium<br />

particles on the corrosion of copper”, J. Electrochem. Soc. 140, pp 1902-1907 (1993).<br />

6. Tomessani L., Brunoro, G., Garagnani, G. L., Montanari, R., Volterri, R., “Corrosion behaviour of<br />

modern bronzes simulating historical alloys”, Revue d'Archeometrie, 21, pp 131-139 (1997).<br />

7. Mabille, I., Bertrand E. M., Sutter, E. M. M., Fiaud, C., “Mechanism of dissolution of a Cu-13 Sn<br />

alloy in low aggressive conditions”, Corros. Sci. 45, pp 855-866 (2003).<br />

8. Rahmouni K., Joiret S., Robbiola L., Shriri A., Takenouti H., Vivier V., “Corrosion and protection of<br />

high leaded tin bronze covered with patina in NaHCO3 + Na2SO4 solution simulating acid rain in<br />

urban environment”, Bulgarian Chem. Commun. 37, pp 26-34 (2005).<br />

9. El-Mahdy G.A., “Atmospheric corrosion of copper under wet-dry cyclic conditions”, Corros. Sci.<br />

47, pp. 1370-1383 (2005).<br />

10. Sidot E., Souissi N., Bousselmi L., Ezzeddine T., Robbiola L., “Study of the corrosion behaviour of<br />

Cu-10Sn bronze in aerated Na2SO4 aqueous solution”, Corros. Sci. 48, pp 2241-2257 (2006).<br />

11. Bernardi E., Chiavari C., Lenza B., Martini C., Morselli L., Ospitali F., Robbiola L., “The<br />

atmospheric corrosion of quaternary bronzes: the leaching action of acid rain”, Corros. Sci. 51, pp<br />

159-170 (2009).<br />

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