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...stilled vinegar then slowly evaporating the solution to leave a residue of crystalline copper acetate. crystalline verdigris; cardenillo (Esp.)

...esins, such as [[Venice turpentine]], verdigris forms [[copper resinate]]. Verdigris is also used as a pesticide, fungicide, catalyst, textile dye and pigment f Note: The term verdigris is also commonly, but incorrectly, applied to any blue-green patina formed

A dark green crystalline powder. Copper acetate is prepared by the reaction of [[acetic acid]] with ...acetate; cupric acetate; cupric diacetate; crystals of Venus, crystallized verdigris; verdet