Blue Green Patina On Copper By Oxidation

Remove oxidation from copper with a paste made of white vinegar salt and flour.
Blue green patina on copper by oxidation. The patina gives the statue of liberty its characteristic appearance but the oxidation of copper can also cause undesirable effects under some circumstances. Miracle gro plant fertilizer is an excellent oxidizer of copper. Exposure to air can cause your copper to oxidize and tarnish with a blue green patina. Many common cleaners leave this patina untouched.
Copper characteristics copper s element symbol cu is derived from the latin cuprum which translates to metal of cyprus indicating where it was mined in ancient times. A lovely patina is possible through the use of a patina kit or homemade concoctions. A patina will form within 30 minutes and become permanent within 24 hours. For a blue patina mix one part miracle gro with three parts water for a solution that you can spray or wipe onto the copper.
The process of the change in color of copper when it is exposed to air is called oxidation oxidation typically turns copper black which is evidenced by dirty looking pennies that have been passed around for a long time. When copper is exposed to water it turns a bluish green color like the statue of liberty or the roofs on old mansard buildings. Patina p ə ˈ t iː n ə or ˈ p æ t ɪ n ə is a thin layer that variously forms on the surface of copper brass bronze and similar metals tarnish produced by oxidation or other chemical processes or certain stones and wooden furniture sheen produced by age wear and polishing or any similar acquired change of a surface through age and exposure.