What is carbon dioxide used for?

There are too many uses. If you say it carefully, you can't finish it for three days and three nights. Bring the content from Wikipedia here.

Carbon dioxide can be injected into the beverage, increasing the pressure, making the beverage contain air bubbles, and increasing the taste when drinking, such as soda and beer.

Solid carbon dioxide (or dry ice) vaporizes at room temperature and absorbs a lot of heat, so it can be used for rapid food freezing.

Carbon dioxide is heavier than air and does not support combustion, so many fire extinguishers use its properties to extinguish fires by producing carbon dioxide. The carbon dioxide fire extinguisher directly uses liquefied carbon dioxide to put out the fire. In addition to the above characteristics, it has the advantage of not leaving solid residues after the fire is extinguished.

Carbon dioxide can also be used as a shielding gas for welding, which is not as protective as other inert gases (such as argon), but is much cheaper.

Carbon dioxide lasers are an important industrial laser source.

Carbon dioxide is the main carbon source for plant photosynthesis and can be used as a gas fertilizer for plant greenhouses and as fertilizer for aquariums.

Carbon dioxide is used in winemaking, and carbon dioxide gas creates an oxygen-deficient environment that helps prevent bacteria from growing in the grapes.

Carbon dioxide controls the pH, carbon dioxide is added to the swimming pool to control the pH, and carbon dioxide is added to keep the pH from rising.

Carbon dioxide can be used in the alkali and sugar industries.

Carbon dioxide can be used as a blowing agent in the plastics industry.

Carbon dioxide can be used for sterilization, sterilization, and filling in airtight cans to preserve food.

Carbon dioxide can be used for power sources: tires (cars, motorcycles, bicycles) inflation; BB bullets, air guns, rope guns; threaders (pipe music).

Dry ice can be used for artificial rain, smoke effects on stage, special effects in the food industry, gourmet food, etc.

Dry ice can be used to clean the nuclear industry equipment and the printing industry's plate rollers.

Dry ice can be used in the automotive, ship, aviation, space and electronics industries.