Cyanide vs. Non-Cyanide Plating Baths: Safety and Performance
The industry is moving away from toxic cyanide chemistry. Compare the traditional performance of cyanide baths with modern, eco-friendly alkaline alternatives.
For over a hundred years, sodium cyanide was the foundation of the electroplating industry. It is a powerful “complexing agent” that allows for perfect plating of Copper, Silver, and Zinc. However, cyanide is also a deadly poison.
Today, environmental regulations and safety concerns are driving a global shift toward Non-Cyanide (Alkaline or Acid) plating chemistries.
1. The Case for Cyanide (Performance)
Despite its toxicity, cyanide is still used because it is “forgiving.” It has incredible cleaning power and can plate onto low-quality steels and complex shapes with ease. It is still the gold standard for Silver Plating and heavy Copper Strikes on zinc die-castings.
2. The Shift to Non-Cyanide (Safety)
Modern Non-Cyanide Zinc and Acid Copper baths have reached performance parity with cyanide.
- Employee Safety: Eliminates the risk of lethal gas exposure in the factory.
- Waste Treatment: Cyanide is extremely expensive to neutralize in wastewater. Non-cyanide baths are far simpler and cheaper to process, reducing the overall environmental footprint of the factory.
3. Which Should You Specify?
Whenever possible, engineers should specify Cyanide-Free processes to support their company’s sustainability goals. Most modern Zinc and Zinc-Nickel specifications already assume non-cyanide chemistry.
Platinex Industries is committed to “Green Plating” and utilizes advanced non-cyanide alkaline zinc and acid zinc chemistries to protect both the environment and our workforce. Contact our compliance team to learn more.