Carbon dioxide (CO2) is used in a range of processes and applications that benefit from its main properties: reactivity, inertness and low temperature.
CO2 can be produced as either
– a high-pressure cylinder gas
– a low-pressure refrigerated liquid
– a solid form as dry ice.
Several of CO2’s major uses are in food and beverage industries, where the gas can be used to carbonate soft drinks, decaffeinate coffee, freeze food products, and maintain ideal atmospheric conditions in food packaging and during food transport.
Carbon dioxide is used as a shielding gas for welding, although in the welding arc, it reacts to oxidize most metals. It is used as a welding gas primarily because it is much less expensive than more inert gases such as argon or helium. CO2 is commonly used with flux cored MIG wires.
• Carbonation of soft drinks and beer
• Recharging of natural mineral waters with carbon dioxide
• Conservation of wine, unfermented grape juice and various fruit juices
• Tapping of beer and prevention of oxidation through contact with the air
• MIG Welding wit flux cored wires.