配方类型:

METALS AND THEIR TREATMENT

配方说明:

Coloring Copper Blue

配方组成:

Gelatin/0.5 oz/gal
Cathode current density/1.5 to 4 A/ft^2
Copper acetate/1.5 oz/gal
Formula No.
Sodium thiosulfate/8 oz/gal
Lead acetate/4 oz/gal
Temperature/200'F
Immersion time/30 to 60 sec.

配制方法:

At temperatures below about 170'F, thin yellow, green, or red films are obtained, depending on the immersion time. With an addition of potassium.