1. Special properties

1.1 Nitrogen

Nitrogen gas is the main constituent of air (78.09% by volume).

Liquid nitrogen is one of the most widely used cryogenic fluids.

Nitrogen is extracted from the air using a cryogenic process.

It is then used :

or in gaseous form, to provide the inert atmosphere required for chemical and metallurgical processes, electronic component manufacturing or neutral-atmosphere...

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Special properties

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(1) - THOMAS (M.F.) - Cryogenics engineering, 2 ^nd edition revised and expanded (2005).

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