NITROGEN
N2
Nitrogen is mainly found in the atmosphere, where it accounts for 78 % by volume of the air we breathe.
But nitrogen is also found in:
- the Earth's crust, to a limited extent (in the form of nitrates, etc.).
- organic form (in the living or dead plants and organisms which form humus) and
in mineral form (ammonia), and thus contributes to soil fertility.
In gaseous form, nitrogen is a neutral and colorless gas. It is inerting and does not sustain life.
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1 pound 1 kilogram 1 scf gas 1  gas1 gal liquid 1 liter liquid 1 ton |
1.0 2.205 0.07245 2.757 6.745 1.782 2000 |
0.4536 1.0 0.03286 1.2506 3.06 0.8083 907.2 |
13.803 30.42 1.0 38.04 93.11 24.60 27.605 |
0.3627 0.7996 0.02628 1.0 150 0.6464 725.4 |
0.1481 0.3262 0.01074 0.4080 1.0 0.2642 296.2 |
0.5606 1.2349 0.04065 1.5443 3.785 1.0 1121 |
Nota:
Scf (standard cubic foot) gas measured at 1
atmosphere and 70°F.
Nm3 (normal cubic meter) gas measured at 1 atmosphere and 0°C.
Liquid measured at 1 atmosphere and boiling temperature.
All values rounded to nearest 4/5 significant numbers.
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| Chemical Symbol | N2 | N2 | |
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Molar Mass |
28.01 | 28.01 | |
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Liquid Phase (at boiling point) |
Specific Gravity (Water = 1) | 0.808@ 1,013 bar | 0.808@ 1 atm |
| Specific Heat Capacity | 2.042kJ/kg °C | 0.4877 BTU/lb °F | |
| Boiling Point | Temperature | -195.8 °C @ 1,013 bar | -320.4°F @ 1 atm |
| Latent Heat of Vaporization | 199.1kJ/kg | 85.6BTU/lb | |
| Gaseous Phase | Specific Gravity (Air = 1) | 0.9737 | 0.9737 |
| Specific Heat Capacity | 1.04 kJ/kg °C | 0.249BTU/lb °F | |
| Density | 1.2506kg/m3 | 0.07807lb/cu. Ft | |
| Triple Point | Temperature | -210 °C | -346.0 °F |
| Pressure | 12.5kPa abs | 1.81 psia | |
| Critical Point | Temperature | -146.9°C | -232.4 °F |
| Pressure | 3399kPa abs | 493 psia | |
| Density | 314.9kg/m3 | 19.6lb/cu. Ft | |
| Thermal Conductivity | 0.026W/m °K@300 °K | 0.01503BTU/ft h °F @ 80°F | |
