If dry ice is directly touched by hands, it will be in danger of frostbite; Volatilization in a sealed room, in the process of changing from solid to gas, will increase the concentration of carbon dioxide in the space, which will seriously make people feel difficult to breathe; And placed in a closed refrigerator, it is easy to cause an explosion.

although improper use and preservation of dry ice may bring losses to human beings, dry ice itself brings a lot of convenience to human life. For example, dry ice is often used as artificial rainfall; It is often used to keep objects in a frozen or low temperature state.

Because dry ice absorbs heat and sublimates into carbon dioxide gas, it has no residue, toxicity, odor and sterilization, so it is widely used in food, health, industry and catering.

Precautions for the use of dry ice

1. Never let children touch dry ice alone.

2. The temperature of dry ice is extremely low, so please do not put it in your mouth to prevent frostbite.

3. Use thick cotton gloves, clips and other shelters when taking dry ice (plastic gloves have no blocking effect).

4. Please use dry ice in a well-ventilated place and avoid being in a closed space with dry ice.

5. Dry ice cannot be mixed with liquid.