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Liquid nitrogen N₂ service, cryogenically liquefied

cryogenically liquefied
Purity 99,998 vol.%
Descriptions Liquid nitrogen N₂ service

Impurities

Impurities

Oxygen 5 vol. ppm
Hydrocarbons 1 vol. ppm
Moisture 5 vol. ppm
Delivery formats in small amounts on the spot

The indicated purity corresponds to the quality in the stationary storage tank.

The indicated purity corresponds to the quality in the stationary storage tank.

Properties asphyxiant
Valve connection plant specific
Shoulder colour none, proper transport marking in accordance with ADR

Conversions

m3 kg l liquefied
1 at 288.15 K (15°C); 1 bar 1,000 1,171 1,447
1 kg 0,854 1,000 1,236
1 l liquid at T boiling point; 1 bar 0,691 0,809 1,000

Other delivery formats

on request ; Alumini® 12, 200 Nitrogen 5.0 ; in static and mobile tanks: Liquid nitrogen 4.8, 5.0, 6.0, Protadur® E 941 and Secudur® N ; in steel cylinders and bundles: Nitrogen 3.0, 4.0, 4.8, 5.0, 5.5, 6.0, ECD, Secudur® N and Protadur® E 941 ; in 300 bar technology: Nitrogen 3.0, 4.8, 5.0, Secudur® N, Protadur® E 941

Physical Data

Molar mass 28,01 g mol-1
Liquid State
Boiling Point 77,35 (-195,8) K (°C)
Heat of Evaporation 198,70 kJ kg-1
Liquid Density 808,6 kg m-3
Gaseous state
Density (at 273.15 K and 1.013 bar) 1,25 kg m-3
Density Ratio to Air (at 288.15 K and 1.013 bar) 0,97
Specific heat (at 298.15 K and 1.013 bar) 1,04 kJ kg-1 K-1
Thermal Conductivity (at 288.15 K and 1.013 bar) 0,0250 J s-1 m-1 K-1
Critical Point
Temperature 126,2 (-147,0) K (°C)
Pressure 34,00 bar
Density 314 kg m-3
Triple Point
Temperature 63,2 (-210,0) K (°C)
Vapour Pressure 0,1253 bar
Heat of Fusion 25,8 kJ kg-1
Additional operating figures
Ignition Point -- K (°C)
Ignition Range in Air -- vol.%
Calorific Value to DIN 51850 -- kJ kg-3
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