Oxygen is the chemical element with the symbol O and atomic number 8. Oxygen makes up 21% of the atmosphere by volume. Oxygen is a colorless, odorless, tasteless gas essential to living organisms.
Oxygen is used for artificial respiration in hospitals used as life support systems in aircraft, submarines, spaceflight and diving. In industry the main application of oxygen is combustion, oxidation, and fermentation. Combined with fuel gases or with argon (Ar) and carbon dioxide (CO₂), oxygen is also used for metal cutting, welding, scarfing, hardening, cleaning, and melting applications.
Fine Gas offers liquid Oxygen in Bulk Tanks and compressed oxygen gas in Cylinders of all sizes.
Properties of Oxygen
| Group | 16 | Melting point | -219 °c |
| Period | 2 | Boiling point | -183 °c |
| Block | p | Density (g cm−3) | 0.001308 |
| Atomic number | 8 | Relative atomic mass | 15.999 |
| State at 20°C | Gas | Key isotopes | 16O |
| Electron configuration | [He]2s2 2p4 | CAS number | 7782-44-7 |
