Luigi Campanella*, Barbara De Filippo*, Daniela Ferro**,Stefano Natali***, Marcella Guiso*, Andrea Brotzu****
Dipartimento di Chimica, Università degli studi di Roma “La Sapienza”, P.le A. Moro 5 00185, Roma, Italia (
Abstract
Starting from non destructive colorimetric measurements on original dark patinated Greek and Roman Bronze Statues, physical chemistry investigations (SEM-EDS, XRD) have been carried out on as-patinated artificial specimens (Cu 88%w, Sn 12% w). The comparison between the colorimetric data obtained on archeological items and those obtained with laboratory methods, interpreted according to the ancient literatures, furnished important indication for the comprehension of the technology related to the dark patina realization.
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