Carbon dioxide is a colorless, non-toxic, odorless gas that does not support combustion. It is used in the food, medical, metallurgical, welding, and chemical industries. In the food industry, it is labeled as additive E290.
Applications: Carbonation of beverages, production of dry ice, welding (protective atmosphere), cooling, food storage, fire suppression systems.
Physicochemical properties:
State: gas or pressurized liquid
CO₂ purity: ≥ 99.9%
Liquefaction temperature: -78.5°C (at atmospheric pressure)
Storage pressure: 50–70 atm (in cylinders)
Moisture content: ≤ 0.01%
Oxygen content: ≤ 0.005%