Potassium Dicyanoargentate (Silver Potassium Cyanide) Supplier in South Africa

What Is Potassium Dicyanoargentate?

Potassium dicyanoargentate, also known as silver potassium cyanide (SPC), is the primary silver salt used in cyanide-based silver electroplating baths. Its chemical formula KAg(CN)₂ represents a coordination compound in which silver is complexed by two cyanide ligands and balanced by a potassium cation. This complex provides a stable, controllable source of silver ions at the cathode, enabling the deposition of smooth, bright silver coatings.

Silver Electroplating Applications

SPC is the preferred silver source in electroplating because cyanide-complexed silver baths yield uniform, brilliant deposits with excellent adhesion on metals including copper, brass, nickel, and steel. Silver plating is used in cutlery and hollowware, jewellery, electronics (connectors, switches, and contact points), and decorative hardware. The cyanide complex allows fine control over deposition rate, throw, and deposit hardness.

Jewellery & Decorative Finishing

The jewellery manufacturing sector relies on potassium dicyanoargentate for bright silver plating of base-metal findings, chains, settings, and costume jewellery. Flash silver plating before gold plating improves adhesion and reduces gold consumption. The Southern African jewellery and silverware industries depend on consistent, high-purity SPC supply to maintain decorative quality and production throughput.

Safe Handling & Cyanide Compliance

Potassium dicyanoargentate is a toxic cyanide compound requiring strict handling controls, dedicated storage, and cyanide-specific emergency procedures. Terracore Chemicals supplies SPC with comprehensive Safety Data Sheets, UN-classified packaging, and guidance on cyanide detoxification of spent plating solutions to ensure compliant and safe use in permitted electroplating facilities.