Forbrite AZ-731 2X is an ammonia free potassium zinc chloride process. It is suitable for barrel and rack operations.
This process produces ultra-bright, ductile and level
zinc deposits.
Ⅰ. Advantages:
1.
Contains no ammonia or cyanide.
2.
Baths are highly conductive and stable.
Ⅱ. Bath compositions and operating conditions :
| Composition | High Cyanide | Medium Cyanide | Low Cyanide |
| Potassium chloride (g/l) | 200g/l | 200 g/l | 180-220 g/l |
| Zinc chloride (g/l) | 53 g/l | 75 g/l |
Barrel:50-60g/l Rack: 65-85g/l |
| Boric Acid |
30 cc/l |
30 cc/l | 25-35g/l |
| AZ-720 2X | 0.5 cc/l | 0.5 cc/l | |
| AZ-731 2X | 13 cc/l | 13 cc/l | |
| PH | 4.6- 5.2 | ||
| Temperature | 25-30℃ | ||
| Voltage | Barrel: 4- 10V Rack: 2-5V | ||
| Agitation | Air agitation required in rack operation | ||
| Current density | Barrel: 0.1- 0.8A/dm2 Rack: 2-6A/dm2 | ||