Data and properties:
| Molecular formula | N₂ |
| CAS Number | 7727-37-9 |
| UN Number | 1066 |
| Appearance | Colourless gas |
| Odour | Odourless |
| Density | 1.165 kg/m³ |
| Melting point | –210ºC |
| Boiling point | –196ºC |
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