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Gases

Oxygen

Food-processing Oxygenation of fish-breeding tanks
Chemicals and petrochemicals Used in combination with other molecules to manufacture plastics
Machine/Metal construction Used in combination with a fuel gas (such as acetylene) for cutting and welding
Paper Environment-friendly paper pulp bleaching
Oil refining Stimulation of certain plants and upgrading of residues (for chemicals or electric power production)
Healthcare Treatment of respiratory insufficiencies and resuscitation
Semiconductors Used ultra pure to oxidize certain materials
Steel and iron Decarburization of cast iron to produce steel, and to enrich blast furnace air
Space Oxidant for cryogenic motor rockets
Glass Environment-friendly glass melting
Other applications Biological water purification, clean waste incineration
Performance Human Life Safety Environment

 

Acetylene

Machine/Metal construction Cutting and welding (with oxygen)
Glass Lubrication of bottle production molds
Performance Human Life Safety Environment

 

Argon

Machine/Metal construction Protection of welds against oxidation, reduction of welding emissions
Laboratories Used pure and in mixtures for industrial and hospital analyses and quality control
Semiconductors Used ultra-pure to protect against impurities
Steel and iron Mixing and protection of continuously cast steel against oxidation
Other applications Inflation of car airbags
Performance Human Life Safety Environment

 

Hydrogen

Food-processing Production of food oils
Chemicals and petrochemicals Combined with other molecules to produce plastics
Machine/Metal construction Heat treatment of various metals
Laboratories Used pure and in mixtures for industrial and hospital analyses and quality control
Oil refining Desulfurizing of fuel-oil and gasoline
Semiconductors Used ultra pure to reducing certain materials
Steel and iron Direct reduction of ore
Space Cryogenic rocket motor fuel
Glass Polishing
Performance Human Life Safety Environment

 

Other gases

Laboratories Pure gases (helium, etc.) and mixtures: industrial and hospital analyses and quality control
Paper Ozone: Clean paper pulp bleaching
Healthcare Nitrous oxide: used as an anesthetic or an analgesic Helium: cooling of medical imaging devices
Semiconductors Specialty gases: such as ultra-pure silane used for silicon deposition
Space Helium: pressurization of cryogenic tanks
Other applications Helium: balloon inflation; leak detection; supra-conductivity
Performance Human Life Safety Environment

Nitrogen

Food-processing Quick-freezing to preserve and protect foods (used pure or mixed with CO2)
Chemicals and petrochemicals Quality protection of products and facilities
Machine/Metal construction Heat treatment of various metals
Laboratories Used pure or in mixtures for various industrial and hospital analyses and quality control
Oil refining Quality protection of products and facilities
Healthcare Low-temperature preservation of living tissues and cells
Semiconductors Used ultra-pure for overall protection against impurities and oxidation
Steel and iron Pneumatic transportation of powdered charcoal
Glass Protection of continuously cast glass against oxidation
Other applications Tyre inflation
Performance Human Life Safety Environment

 

Carbon dioxide

Food-processing Carbonation of carbonated beverages, draft beer and quick-freezing
Machine/Metal construction Shielding of welds against oxidation
Healthcare Surgical dilation by intra-abdominal insufflation
Other applications Carbon dioxide snow for fire extinguishers; pH control and regulation of waste waters, swimming pools, etc...
Performance Human Life Safety Environment