Nitrogen :
Nitrogen is acquired through fluidization and resolution of the air. It is found commercially in liquid and/or gas phases.

Liquid Phase ;
It is stored and shipped in double-walled special cryogenic tanks that are insulated with vacuum and perlite material.

Gaz Phase ;
It is acquired through pipeline under the pressure or in pressure resistant seamless steel tubes as compressed.  According to TSE standards, the purity of 1st class of liquid/gas nitrogen should be minimum 99,999 % and the purity of the 2nd class should be minimum 99,99 %. (TSE- TS 3192) The external color of the tube is GREEN RAL 6029 and the periodical maintenance is 10 years for 345 and 450 bar tubes and 5 years for 225 bar tubes. ( TSE 11169)

Nitrogen Properties :
Molecular weight : 28,01 g/ mol
Density(liquid, in -186°C) : 0,808 kg/ dm³
Density (gas, 0°, 1 atm) : 1,25 kg/ m³
Boiling point (1 atm) : -196°C
Melting point (1 atm) : -210°C
Specific gravity ( air :1) : 0,967

It is a colorless, scentless, tasteless gas which is lighter in comparison to the air.

The nitrogen is not toxic. However, if it is breathed for a long time it functions as a simple chocking agent; the symptoms are quick breathing and difficulty in breathing; qualm; quick fatigue and blackout and subsequently death.

It is highly suffocating. It is a little bit lighter than the air. The nitrogen is not corrosive and can be used in every metal which are resistant against process pressure.

The direct contact with liquid nitrogen may lead to freezer burn in skin. The nitrogen gases have a wide field of usage. For example, food shocking and long-term conservation and shipment in food industry; in ammonia synthesis; in providing inert atmosphere in chemical, textile, food, paint industry; in transferring highly inflammable liquids under the nitrogen pressure; in producing light bulb in electronic industry; in nuclear reactors; in preventing oxidation in consumable oils; in cleaning tanks, pipelines and refineries; in cereal silos;  in providing controlled atmosphere in heat treatment furnace; in producing glass and steel; in coal mine security and fire extinguishing; in packaging food and sensitive objects; in driving the petroleum and gas wells.

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