Electroplating can result in several color such as black color chromium plate, and such deposits color have used commercially. The result of this electroplating actually not real black but rather grey, all dull or mat chromium deposits seem to turn bright metallic rather readily if exposed to much abrasion or wear. With further treatment such as oiling can give more black appearance. To produce black color on electroplating is use of high current density in a cold bath containing chromic acid and acetic acid.
Success was very limited in effort to utilize such bath for electroplating. A chromium ammonium chloride solution was used for brush plating. Better result in brush plating were obtained with Gregory's salt, ammonium chromium oxalate.
Electroplating process indeed an interesting because it like a magic, by applying of power and chemical solution you can get a very interesting changing on process. At high knowledge about this process they can make many kind of interesting color, black, grey, bright white, and even gold color.
Success was very limited in effort to utilize such bath for electroplating. A chromium ammonium chloride solution was used for brush plating. Better result in brush plating were obtained with Gregory's salt, ammonium chromium oxalate.
Electroplating process indeed an interesting because it like a magic, by applying of power and chemical solution you can get a very interesting changing on process. At high knowledge about this process they can make many kind of interesting color, black, grey, bright white, and even gold color.