Nitrogen (N2) constitutes 78.03% of the air,
has a gaseous specific gravity of 0.967, and has a boiling point
of -320.5°F (-195.8°C) at atmospheric pressure. It is colorless,
odorless, and tasteless. Nitrogen is often used as an "inert"
gas due to its nonreactive nature with many materials. However,
nitrogen can form certain compounds under the influence of
chemicals, catalysts, or high temperature. Commercial nitrogen
is produced by a variety of air separation processes, including
cryogenic liquefaction and distillation, pressure swing
adsorption (PSA), and membrane separation.
Gaseous nitrogen is used in the chemical and
petroleum industries for storage tank blanketing and vessel
inerting applications. It is also used extensively by the
electronics and metals industries for its inert properties.
Liquid nitrogen, produced by the cryogenic air separation
process, finds wide use as a refrigerant in applications such as
cryogenic grinding of plastics and food freezing. GTS-Welco's Product
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