Oxygen [ Return towards Gas information ]
CAS Number: 7782-44-7
UN1072 (gas); UN1073 (liquid refrigerated)
Main properties :
| Molecular weight | 31.9988 g/mol |
| Solid phase: | |
| • Melting point | -2190C |
| Liquid phase: | |
| • Density (1.013 bar at boiling point) | 1141 kg/m3 |
| • Boiling point (1.013 bar) | -1830C |
| • Latent heat of vaporisation (1.013 bar at boiling point) | 212.98 kJ/kg |
| Gaseous phase: | |
| • Density (1.013 bar at boiling point) | 4.475 kg/m3 |
| • Density (1.013 bar and 150C) | 1.354 kg/m3 |
| • Specific volume (1.013 bar and 210C) | 0.755 m3/kg |
| • Heat capacity at constant pressure (1 bar and 150C) | 0.029 kJ/(mol.K) |
| • Heat capacity at constant volume (1 bar and 150C) | 0.021 kJ/(mol.K) |
| • Thermal conductivity (1.013 bar and 00C) | 24.24 mW/(m.K) |
| Concentration in air | 20.94 % |
Supply mode :
Oxygen can be supplied in cylinder, liquefied gas tank, by on-site generator or by pipeline.
Main applications:
| Metallurgy, foundry | intensification of combustion, steel refining |
| Metal working | welding and cutting - combined with combustible gas (e.g. acetylene) |
| Chemistry | binding with other molecules, plastics manufacturing |
| Petrochemistry | production stimulation, modification of wastes and deposits (in chemistry or power engineering) |
| Laboratories | pure gas and mixtures for industrial and hospital analyses and quality control |
| Glass | intensification of combustion, cracking-off, surface polishing |
| Healthcare | treatment of respiratory insufficiencies, resuscitation |
| Food & beverages | oxygenation of fish-breeding tanks, fish farm water oxygenation |
| Others | biological water purification; clean waste incineration; paper pulp bleaching |
Contact us
Telephone :
+48 (12) 62 79 300
Fax :
+48 (12) 62 79 333
Address :
ul. Josepha Conrada 63
31-357 Kraków
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