Basic Chemicals For Electroplating

Electroplating is a process that convert a metal solution into the solid in other metal surface using direct electric current. The solution is made can conduct electric current, if the solution can't conduct electric current can add some acid or base solution that can conduct electric current. Metal solution will exist in positive ion form which transfer to the negative pole of the electrode because every charge molecule will go into the opposite of the electrode.

For example in Chrome Plating Process, the chemical use chromic acid will can dissolve in water. To make this solution more conduct of electric current, into the solution add with sulfuric acid. The composition of chromium bath will vary depend on the goal of end product will formed.

For Bright Plating use this formulation:

The basic formulation of 100:1 chromic acid/sulphuric acid proportions:

Chromic acid crystals = 33 oz. (936 grams)
Sulphuric acid fluid = .33 oz. (9.36 millilitre)
Distilled (or demineralized) water to make 1 gallon (3.79 litre)

For Black Chromium Plating use this formulation:

Chromic acid 33 oz (936 g)
Acetic acid = 28.2 oz (800 g)
Barium acetate =1.0 oz (28 g)
Distilled (or demineralized) water to make 1 gal. (3.79 litre).
Operation of this bath will be at 90° to 115° F (32.2° C. to 46.1° C.) and at a current density of 0.25 to 0.63 A/sq.in.

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Chemical Process

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