Nitrogen is used as an inert gas especialy to create, in
combination with hydrogen, a reductive atmosphere over the tin bath in the float
glass process.
Industrial Use
Nitrogen can be used for blanketing, as well as for storage for protecting
raw materials or finished products in liquid form from the formation of
peroxides and/or gum, and from contamination by oxygenated components
Nitrogen is used as a carrier gas in gas chromatography, Nitrogen is the
balance gas of the calibration gas mixtures for environmental monitoring
systems and industrial hygiene gas mixtures.
Nitrogen is largely used as purge, dryier or blanket gas for analyzers or
chemical reactors (under gaseous state or at low temperature liquid state).
Heat treatment of various metals.
Nitrogen is a component of the special mixtures used in CO2
Lasers.
Medical Use
Low-temperature preservation of living tissues and cells.
Use In Food Industry
Liquid nitrogen is the mostly used cryogenic fluid, to chill, freeze or
store food products. Gaseous nitrogen is commonly used in contact with
foodstuffs to avoid oxidation or micro-organism growth by inerting of
liquids. Modified Atmosphere Packaging (MAP) preserves and protects foods (
pure nitrogen or mixed with CO2).