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About: Verdigris     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Colour, within Data Space : dbpedia.org associated with source document(s)

Type: Thingcolour New Facet based on Instances of this Class

Verdigris is the common name for blue-green, copper-based pigments that form a patina on copper, bronze, and brass. The technical literature is ambiguous as to its chemical composition. Some sources refer to "neutral verdigris" as copper(II) acetate monohydrate (Cu(CH3CO2)2·(H2O)) and to "blue verdigris" as Cu(CH3CO2)2·CuO·(H2O)6. Another source describes it as a basic copper carbonate (Cu2CO3(OH)2), and, when near the sea, basic copper chloride (Cu2(OH)3Cl). Still other sources describe verdigris as Cu(CH3CO2)2.(Cu(OH)2)n where n varies from 0 to 3. The alchemical symbol for verdigris is 🜨 (unicode U+1F728).