Oxygen, nitrogen, acetylene, argon, hydrogen, carbon dioxide, helium... Numerous industries use our gases for the manufacturing of their products.
Nitrogen
Mainly in the atmosphere, the nitrogen constitutes 78% of the air which we breath.
Argon
Present in the atmosphere at the level of 0.9%, the argon is a neutral and colorless gas as the nitrogen.
Acetylene
Synthesis gas, the acetylene (C2H2) is generally produced from the reaction of the calcium carbide with the water.
Hydrogen
Present in the atmosphere as traces, the hydrogen is generated, from hydrocarbons (oil and by-products), and water.
Carbon dioxide
Result of the combination of the carbon and the oxygen, the CO2 is produced by various processes: combustion of coal and hydrocarbons, fermentation of liquids, and breath of the humans and the animals.
Helium
The helium exists in abundance in the atmosphere of the Sun (origin of its name: Helios), but is only present as traces in the atmosphere.
Oxygen
Present in abundance in the nature, the oxygen represents in weight 21% of the air we breath.