For the aluminum anodizing process and its alloys. Solutions of oxalic acid containing 2 - 10 percent of the acid are used, sometimes with additions of other chemicals such as succinic acid, potassium permanganate, chromic acid etc. For anodizing conditions are: anode current density, 10 - 20 ampere per sq. ft., solution temperature, 28 - 32 oC; bath voltage 40 - 60 volts; and anodizing time 30 - 40 minutes. Anodizing of aluminum in oxalic acid produces colored film depending on the anodizing conditions and the thickness of the anodic oxide film. The table below gives the anodizing conditions suitable for producing films of there different colors.
More about Anodizing in Acid and type of metallic coating such as on chrome plating, bright chrome plating, dull black chrome plating, white chrome plating, gold color chrome plating, silver plating, gold plating, copper plating, anodizing, aluminum anodizing, black anodized, red anodized, yellow anodized, bronze color anodized, silver anodized, gold anodized, zinc coating, galvanizing. Try find about chromic acid solution.
More about Anodizing in Acid and type of metallic coating such as on chrome plating, bright chrome plating, dull black chrome plating, white chrome plating, gold color chrome plating, silver plating, gold plating, copper plating, anodizing, aluminum anodizing, black anodized, red anodized, yellow anodized, bronze color anodized, silver anodized, gold anodized, zinc coating, galvanizing. Try find about chromic acid solution.