Can dry ice be placed in the refrigerator?

Dry ice is solid carbon dioxide. Many people may not be familiar with what dry ice is. In fact, dry ice has been widely used in our lives. For example, when we eat out, we see many things placed on ice cubes that are emitting cold air, or when we see some stage performances, the gases with fairyland effects are all made of dry ice.

Can dry ice be placed in the freezer?

Can't. Dry ice cannot be stored in ultra-low temperature freezers.

reason:

1. Place the dry ice in an insulated box: An insulated box with good insulation effect can slow down the sublimation rate of dry ice. Because the pressure generated by the sublimation of dry ice can cause an explosion, dry ice should not be stored in airtight insulated containers.

2. Dry ice is solid carbon dioxide, which is obtained by condensing carbon dioxide into a colorless liquid under a pressure of 6250.5498 kPa and then rapidly solidifying it under high pressure. Carbon dioxide is a colorless and odorless gas under normal conditions. It exists naturally in the air. Although the content of carbon dioxide in the air is relatively small (about 0.03% by volume), it is one of the most important gases we know of.

The role of dry ice

Commonly used for fire fighting

Since dry ice is a solid form of carbon dioxide, it can be placed in a fire extinguisher to achieve the purpose of extinguishing the fire through the flame retardant properties of carbon dioxide.

Can be used as a refrigerant

Since the temperature of dry ice is extremely low, usually reaching dozens of degrees below zero, it is often used in long-distance transportation and preservation.

Cleaning scale deposits from industrial equipment

Because dry ice has an extremely low temperature and turns directly into gas after use, it is often used to clean large industrial machinery. It is not only convenient but also practical!

For artificial rainfall

Everyone knows that dry ice is a solid state of carbon dioxide. When artificial rainfall is created, dry ice is placed in high-altitude clouds to condense the moisture in the air into small water droplets, which then fall as rain.

Used to beautify food

In many star-rated hotels or seafood restaurants, we can see some food emitting white gas when being served on the table, which is quite impressive. In fact, that is dry ice, which is used to beautify the food.

Used to make chemical reagents

In chemical laboratories, many chemical reagents need to be made using dry ice.

Creating a magical effect on stage

At weddings or on performance stages, we can see white fairy air. In fact, it is formed by using a machine to vaporize dry ice and spray it into the air.