Nitrogen (from ancient Greek “άψυχος” – “lifeless”) is a colorless, tasteless and odorless diatomic gas. It is one of the most abundant elements on Earth. Nitrogen is the main component of air (78% by volume), chemically very inert, but reacts with complex compounds of transition metals. Nitrogen is one of the main biogenic elements that make up proteins and nucleic acids. With a rapid decrease in pressure, Nitrogen causes decompression sickness. Many Nitrogen compounds are very active and often toxic.


Scopes of Nitrogen:

  • in metallurgy – in the processes of hardening and annealing of metal, during vacuum degassing to create the necessary conditions for continuous casting of steel, as well as during cold working;
  • in the chemical industry – to produce nitrogen fertilizers and ammonia;
  • in the food industry – for packaging and storage of food products, for cleaning and filling refrigeration units;
  • in the oil and gas industry – to stabilize pressure while drilling wells and during equipment repair;
  • in medicine – for cryogenic therapy, removal of various neoplasms on the surface of the skin, for anti-aging procedures;
  • as a means of fire extinguishing in gas fire installations;
  • in electronics – to produce semiconductors;
  • in glass production – for cooling electrodes in arc furnaces;
  • in metal welding – to create a protective gas environment.

INGAS LLC produces and sells Nitrogen corresponding to DSTU GOST 9293-74 (ISO 2435-73, IDT), TU U 24.1-14361569-007: 2006, as well as its mixtures of various concentrations.

Formula: N₂
General Description: diatomic, odorless, colorless and tasteless non-toxic gas
Atomic (molar) mass: 14.00728 g/mol
Properties of the chemical element0°С
(273.15°K, 32℉)
& 760 mm Hg
(1 atm (physical),
1.033 at (technical),
101.325 кN/м², 101.325 кPа, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
(288.15°K, 59℉)
& 760 mm Hg
(1 атм (physical),
1.033 at (technical),
101.325 кN/м², 101.325 кPа, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
(293.15°K, 68℉)
& 760 mm Hg
(1 atm (physical),
1.033 at (technical),
101.325 кН/м², 101.325 кPа, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
(288.15°К, 59℉)
& 1 bar
(0.987 atm (physical),
1.02 at (technical),
100 кN/м², 100 кPа, 14.5 psia, 0 psig, 29.53 in Hg, 750.062 torr)
Density at various temperatures and pressures:0.1785 kg/m³0.1692 kg/m³0.1664 kg/m³0.1671 kg/m³
Specific volume at various temperatures and pressures:5.6022 m³/kg5.9095 m³/kg6.0110 m³/kg5.9853 m³/kg
NoNames of gas
and controlled impurities
Formula of an element
or chemical compounds
Gas purity
and content of its controlled impurities
(vol.%, ppmv)
special purityincreased puritytechnical
1st grade2nd grade1st grade2nd grade1st grade2nd grade
1.NitrogenN299.999 vol.%99.996 vol.%99.99 vol.%99.95 vol.%99.6 vol.%99.0 vol.%
2.OxygenO2⩽5 ppmv⩽10 ppmv⩽10 ppmv⩽10 ppmv⩽50 ppmv⩽1 об.%
3.HydrogenH2⩽2 ppmv⩽10 ppmv– – – – 
4.Amount of hydrocarbonsΣCnHm⩽3 ppmv⩽7 ppmv– – – – 
5.MoistureH2O⩽7 ppmv⩽10 ppmv⩽15 ppmv⩽40 ppmv⩽90 ppmv– 
CAS Number: 7727-37-9
UN Number: UN 1066
DOT Shipping Name: Nitrogen, Compressed
DOT Classification: 2.2 (Non-Flammable Gas)