The laboratory tests showed that AIT reached higher opencircuit potential values than TI tests, indicating the formation of
more protective products on the surface of bronze. Furthermore, the open-circuit potential value obtained in AIT is approximately equal to the one obtained in FT tests. Thus, the patina formed in alternate immersion was similar to the one formed during the field test. After 8 months, the FT and AIT tests reached practically the same value of potential (about +135 mVSCE). On the other hand, significantly more negative open-circuit potential values were observed after 8 months for samples submitted to the TI tests. This is probably related to the presence of nantokite on the bronze surface, which was not detected in the field or in alternating immersion tests. The electrochemical impedance results showed that the film formed on the samples submitted to the field and laboratory tests presents a porous structure, and SEM analysis corroborated this hypothesis. The thermodynamic calculations, using the values of opencircuit potential and pH obtained during the alternating and total immersion tests, show that the scheme of reactions proposed in this work are coherent with the products resulting from corrosion, identified by X-ray diffraction