Potassium cyanide

Potassium cyanide (CAS 151-50-8), commonly referenced as KCN in industrial procurement, is an inorganic salt used primarily as a complexing and leaching agent in metal processing and surface finishing operations.

Where is Potassium cyanide used?

• Electroplating: primary electrolyte carrier for depositing gold and silver
• Metal substrates: copper and zinc coatings for electronics connectors and decorative hardware
• Precious metal mining: cyanide leaching that solubilizes gold and silver from low-grade ores
• Electronics manufacturing: selective metal deposition on printed circuit boards and semiconductor components
• Jewelry finishing: KCN-based baths for bright gold and silver plating on consumer goods.

Good to know: Packaging and handling are subject to strict regulatory controls and safety protocols; procurement typically requires end-use documentation and licensed handling facilities.

Commercial specifications

• 98% minimum purity for standard commercial grades