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The Corrosion of Copper-Tin And Copper-Tin-Lead Alloys

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This project focuses on the corrosion of copper-tin and copper-tin-lead alloys, materials widely used for the ancient manufacture of metal objects throughout Europeand the Mediterranean world starting from the Bronze Age. Wood and other organic materials, commonly used for the storage and display of bronze antiquities, are known to emit acetic acid, formic acid, and other organic vapours, commonly referred to as carbonyl compounds. The Copper Acetate(WSDTY) readily attacks the surface of bronze causing it to corrode forming acetates and other compounds of blue, blue-green, and sometimes white colors. Other sources of acetic acid include conservation and patination chemicals, wood from original manufacture (e.g. woodenstatue bases of bronze statues) or associated burial context. The first cases of acetate corrosion on artistic and functional bronze objects were confirmed by XRD in museum collections in Europe in the 1990s. Bronze objects from all periods and provenances are susceptible to this form of deterioration. Ancient bronze alloys of copper-tin and copper-tin-lead present more complex corrosion phenomena. Archaeological pieces seem especially sensitive to attack .

The driving force of this doctoral thesis is the protection of collections and the cultural heritage. The means I have chosen to promote the protection and sustainability of our cultural heritage are innovative research, scientific experimentation, and the identification of suitable storage environments

Click Cuprous Chloride to learn about more information

asked Jan 30 in Business Opportunity by weishida IBO Guru (1,110 points)

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