Sodium cyanide is widely used. In the field of metallurgy, it is often used to extract precious metals such as gold and silver. Because it can form a stable complex with these metals, the metal can be separated from the ore, which greatly improves the extraction efficiency and purity.

In the electroplating industry, sodium cyanide also plays an important role. It can be used as one of the components of the electroplating solution, which helps to form a uniform, dense and strong adhesion coating on the surface of the plating part, significantly improving the quality of the coating, so that the plating part has better corrosion resistance and aesthetics.

In organic synthesis, sodium cyanide is a key chemical reagent. With the help of its cyanide group, it can participate in many organic reactions and synthesize a wide variety of organic compounds, which are indispensable in the fields of medicine, pesticides, dyes, etc.

However, it is necessary to pay great attention to the fact that sodium cyanide is extremely toxic. During use, professional operating procedures must be strictly followed and comprehensive protective measures must be taken to prevent serious harm to human body and the environment.