Is Copper Cyanide Soluble In Water?

Copper cyanide (CuCN) is slightly soluble in water, with a solubility of approximately 0.6 g/L at room temperature. However, its solubility increases significantly in the presence of certain ligands such as ammonia or potassium cyanide. The dissolution of copper cyanide in water is an equilibrium process that involves the formation of complex species such as Cu(CN)2- and Cu(CN)32-. At high pH values, the solubility of copper cyanide can also be enhanced due to the formation of hydroxo complexes. Overall, while copper cyanide is not highly soluble in pure water, its solubility can be influenced by various factors such as pH and the presence of other compounds.