What are the uses of carbon dioxide

Carbon dioxide is a substance that people are very familiar with. It is everywhere in our lives because the gas that people exhale every moment is carbon dioxide gas. This substance is useless to the human body, but it is widely used in modern industrial production and life. Let’s take a look at the uses of carbon dioxide. I hope you can understand it.

1. Carbon dioxide as fire extinguishing agent:

Because carbon dioxide does not burn and does not support the combustion of general combustibles, and the density of carbon dioxide is greater than that of air, carbon dioxide is often used to extinguish fires. Carbon dioxide is used to isolate the air to achieve the purpose of extinguishing fires.

2. Carbon dioxide as refrigerant:

Solid carbon dioxide (dry ice) turns directly into gas when it melts, absorbing heat during the melting process, thereby lowering the surrounding temperature. Therefore, dry ice is often used as a refrigerant.

3. Artificial rainfall with carbon dioxide fire extinguisher:

Spraying dry ice at high altitudes with airplanes can condense water vapor in the air, thus creating artificial rainfall.

4. Carbon dioxide as industrial raw material:

In the chemical industry, carbon dioxide is an important raw material and is used in large quantities to produce pure alkali, baking soda, urea, carbon pigments, lead white, etc. In the light industry, more carbon dioxide is dissolved under high pressure to produce carbonated beverages, beer, soda, etc.

5. Carbon dioxide can store food:

Food stored in carbon dioxide can effectively prevent the growth of bacteria, mold, and insects in food due to lack of oxygen and the inhibitory effect of carbon dioxide itself, avoid spoilage and the production of peroxides that are harmful to health, and preserve and maintain the original flavor and nutrients of the food.

Although carbon dioxide reacts violently with many metal oxides or reduced metals such as aluminum, magnesium, titanium and zirconium, it is compatible with most substances. Mixtures with sodium and potassium explode when shocked. Therefore, you should always pay attention to safety when using it.