Because the temperature of dry ice is very low, the temperature is MINUS 78.5 degrees Celsius, so it is often used to keep objects in a frozen or low temperature state. Dry ice can quickly freeze objects and reduce the temperature, which has been widely used. When dry ice dissolves, it does not change from solid to liquid, but sublimates directly from solid to gas, so its melting will not produce any water or liquid.

Dry ice is unlikely to explode in general, but improper storage still has certain risks. When dry ice volatilizes, it will release carbon dioxide gas which is more than 1000 times larger than solid dry ice. If it is placed in a closed environment, great pressure will be generated inside the storage environment, which will eventually lead to physical explosion.

It should be noted that the evaporation temperature of dry ice is -78.477℃, while the temperature of freezer is -4℃ to -24℃. Even at the low temperature in the freezer, dry ice will volatilize.

Extended data

The refrigeration effect of dry ice is more than 1.5 times that of water ice. When dry ice volatilizes, it will lead to a sharp drop in the surrounding temperature, and there is a potential risk of frostbite. Especially children, like to put dry ice on their hands or other parts to cool down or play, which is easy to frostbite their skin.

Try not to let dry ice directly contact the skin to avoid frostbite. When taking dry ice, you must also use thick cotton gloves, clips and other spacers. Dry ice is solid carbon dioxide with a temperature of -78.6℃. Dry ice is widely used, and consumers are usually more exposed to the cloud effect on the stage and food preservation. Although dry ice has many advantages, due to its low temperature and volatile characteristics, there are also some safety hazards in use.

People's Network-Dry ice can be used for food preservation, but the risk of explosion and frostbite cannot be ignored.

Reference source; Baidu encyclopedia-dry ice