Cyanides

Cyanides play an important role in electroplating, a process for the electrochemical deposition of metals on surfaces. The use of cyanides is particularly common in the form of cyanide complexes such as potassium cyanide or sodium cyanide. These substances serve as electrolytes in electroplating baths and enable the deposition of metal layers on a substrate.

In electroplating, cyanides act as complex ligands that interact with metal ions and form stable, water-soluble complexes. These complexes facilitate the transport of the metal ions to the surfaces to be coated and contribute to the formation of uniform and adherent metal layers. Cyanide is used particularly frequently in electroplating for the deposition of metals such as gold and silver.

However, the use of cyanides in electroplating is associated with risks, as cyanide compounds are highly toxic. Therefore, careful handling and disposal is necessary to minimize both worker safety and environmental impact. Due to the toxicity of cyanides, efforts are underway to develop alternative, more environmentally friendly processes based on non-toxic electrolytes.

Electroplating with cyanides has found applications in various industries, including jewelry manufacturing, electronics manufacturing and surface finishing. However, despite the effectiveness of this process, a conscious approach to the toxic properties of cyanides is necessary to ensure safety standards and minimize environmental impact. Research and innovation is focused on developing alternative electroplating processes that are both efficient and environmentally friendly.