The mixed liquid formula. 

1. Add about half a liter of water. 

2. Add Yom High potassium hydroxide (KOH) agitation to dissolve.

3. Add sodium cyanide (NaCN) stirred to dissolve. 

4. Add copper cyanide (CuCN) stir to dissolve. 

5. Insert Advertising cyanide (ZN (CN) 2). 

6. Add sodium carbonate (Na2CO3). 

7. Stirred solution to dissolve all material. 

8. Filter, clean solution. 

9. Add another half liter of water. 

Use. 

Because of the cyanide compound is mainly to be careful because it is toxic. 

Plating 

The temptation is to use brass. The use of copper, brass containing 60% to 40% zinc plating is soft. For the dark treatment. Available in brass with a mixture of zinc, copper 70% and 30%. 

- Joining parts of the cathode. Brass for the lure to the anode. 

- 6-10 V voltage. 

- Power consumption of about 3-5 amps. 

- Temperature treatment. To be effective must be done at temperatures about 24-38 ° C. 

After treatment and wash parts, clean immediately. Brass surface that will tarnish over time.

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