Sodium cyanide is a highly toxic substance that is extremely harmful to human health. After sodium cyanide enters the human body, it will quickly dissociate cyanogen ions. Cyanogen ions can bind closely to iron ions in cytochrome oxidase, causing the enzyme to lose its activity, thereby hindering the normal respiration of cells, making tissue cells unable to use oxygen, and eventually causing tissue hypoxia.

When slightly poisoned, the human body may experience symptoms such as headache, dizziness, fatigue, chest tightness, nausea, and vomiting, which are like suffering from strong discomfort and are unbearable. Severe poisoning can quickly lead to loss of consciousness, rapid and irregular breathing, tonic spasms all over the body, and then fall into a deep coma, as if the vitality of life is instantly withdrawn. If not treated in time, it will soon die due to respiratory and heartbeat arrest.

In view of the serious harm of sodium cyanide to health, in all aspects of the production, storage, transportation and use of sodium cyanide, it is necessary to strictly follow extremely strict safety operating procedures, and relevant operators must be equipped with professional and complete protective equipment, such as special gas masks, protective clothing, etc., to ensure their own safety. At the same time, the waste of sodium cyanide must be handled carefully and properly, and it must never be discarded or discharged at will to prevent it from polluting the environment and endangering the health and safety of more lives.