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[Chemical Knowledge]：The correct use of sodium azide and precautions

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Sodium azide is a common chemical reagent, which is widely used in chemical laboratories and industrial production. Its chemical nature is very lively, with high risk, so in the use of extra care and follow the correct method of operation. The following describes the proper use of sodium azide and precautions to help you use this chemical properly.

1. Understand the basic information of sodium azide
Sodium azide is an inorganic compound with a chemical formula of NaN3, which is a white crystalline solid at room temperature. It is easily hygroscopic in humid air, insoluble in ethanol and ether, but easily soluble in water. Sodium azide will decompose and release highly toxic azide nitrogen gas at high temperature or when impacted, so it must be stored in a dry and ventilated place and avoid external impact.

2. The correct storage method
sodium azide should be kept away from fire and acidic substances, and stored in a dry and ventilated place, away from direct sunlight. During storage, regularly check whether the packaging is intact to avoid sodium azide from moisture or mechanical damage.

3. Correct operation method
When using sodium azide for chemical experiments, you should first wear protective glasses and gloves to avoid direct contact with skin or eyes. Sodium azide is easy to explode in humid air, so it is necessary to keep the operating environment dry during operation. Sodium azide should not be in contact with the metal surface for a long time, so as not to cause the formation of metal azide.

4. Waste disposal
Waste generated during the use of sodium azide must be properly disposed. Waste should be placed in closed containers, marked with hazardous properties, and finally disposed of by a professional waste disposal unit.

5. Accident treatment
If an accident occurs, such as sodium azide accidentally comes into contact with skin or eyes, rinse with plenty of water immediately and seek medical treatment in time. At the same time, it should be noted that sodium azide leakage or accident should not be handled without professional training.
When using sodium azide,
must carefully follow the relevant operating procedures and operate in strict accordance with the instructions to ensure the safety of themselves and others. Please note that the content provided in this article is for reference only, and the specific operation should follow the relevant safety regulations and operating procedures. I hope everyone can do a good job of safety protection, rational use of sodium azide, to ensure the safety and stability of the laboratory and production site.