2 research outputs found
On the Chemical Signature and Origin of Dicoppertrihydroxyformate (Cu2(OH)3HCOO) Formed on Copper Miniatures of 17th and 18th centuries
A corrosion product rarely reported in the literature has been found on the copper support of
three miniature paintings of the 17th and 18th centuries. This product, which has been identified as
dicoppertrihydroxyformate (Cu2(OH)3HCOO), is an unusual basic copper formate found on copper artifacts.
The identification and characterization of dicoppertrihydroxyformate was carried out directly over the corroded
surface of the objects, using a nondestructive approach, which combines the integrated use of various
microanalytical techniques. Using this approach, it was possible to obtain a set of new reference data about the
natural form of Cu2(OH)3HCOO, that will enable its unambiguous identification in other similar objects. In this
work, the probable causes that may have contributed to its formation are also discussed.Museum of Évora (ÉvoraPORTUGAL); Fundação para a Ciência e a Tecnologia (FCT) - PhD Grant No. SFRH/BD/75549/2010; INALENTEJO Program, 7th Framework Programme of the
European Commission (Operation nr. ALENT-07-0262-FEDER-001868)