How Is Copper Cyanide Synthesized?

Copper cyanide can be synthesized through the reaction between copper (II) salts and potassium cyanide. In a typical procedure, copper (II) sulfate pentahydrate is dissolved in water to form a solution, which is then slowly added into a solution of potassium cyanide while stirring vigorously. The resulting mixture is stirred for a period of time to allow for complete reaction, then filtered and washed with water to remove any impurities. The product can be dried under vacuum or in an oven at low temperature. It should be noted that the synthesis of copper cyanide requires careful handling of toxic chemicals and should only be performed by experienced personnel with appropriate safety measures in place.