<P> Verdigris is the common name for a green pigment obtained through the application of acetic acid to copper plates or the natural patina formed when copper , brass or bronze is weathered and exposed to air or seawater over a period of time . It is usually a basic copper carbonate , but near the sea will be a basic copper chloride . If acetic acid is present at the time of weathering , it may consist of copper ( II ) acetate . </P>
<P> Verdigris is the common name for a green pigment obtained through the application of acetic acid to copper plates or the natural patina formed when copper , brass or bronze is weathered and exposed to air or seawater over a period of time . It is usually a basic copper carbonate , but near the sea will be a basic copper chloride . If acetic acid is present at the time of weathering , it may consist of copper ( II ) acetate . </P>
what 's it called when copper turns green
what 's it called when copper turns green
Verdigris
Verdigris