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Enticed by the brilliant green hues of copper acetate and copper resinate, some painters in the Renaissance period incorporated these pigments into their masterpieces. However, by the 18th century, most artists had abandoned the colors because of their tendency to darken with time. Now, researcher
jordans damen s reporting in ACS鈥?journal Inorganic Chemistry have uncovered the chemistry behind the copper pigments鈥?color change.Copper acetate (also known as verdigris) and copper resinate were used in European easel paintings between the 15th and 17th cent
jordan 1 mid uries. Artists typically mixed these pigments with linseed oil to make paint. Until now, scientists didn鈥檛 know why the green paints often turned brown with time, although they had some clues. Light exposure was thought to play a rol
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