What is nitrogen used for?

Answer 1

In any analytical laboratory, you can find large cylindrical nitrogen tanks. When nitrogen gas is very clean (where nitrogen tanks don't have any gaseous water droplets for example) nitrogen gas can be used to "drive off" or push out other gases from technical instruments or instrument tubings or even to quickly evaporate liquid alcohols, just used to dry lab beakers and test tubes that had liquid water in them. Nitrogen is also used to make sure "outside air" does not get into sensitive electronics in very expensive equipment. When nitrogen is introduced gently into these "computer chip saturated" guts in those sensitive equipment, the outside air (that is moist and dirty) can't get in!

In general nitrogen is a gas constituting about 80% of air, relatively inert and hard to bind. Cooled down deeply it liquifies at about -170 centigrade and is used to flash freeze small biological samples and kill warts, but it also makes a wonderful fog. Many labs and industries use liquified nitrogen for cooling and it also gives them a continuous flow of the gas which is very dry and oxygen-free as a drying agent or as a shielding gas.

The molecule is composed of 2 atoms of nitrogen and those atoms are produced by electric discharge and in low quantities in high temperature combustion with air. They are very reactive radicals that immediately form other agents usually oxides with oxygen ( called NOx ) that react with water to form nitrous an nitric acid. Bacteria change that into other products such as ammonia and amino acids that are the building blocks of proteins, and are metabolically decomposed to urea. Bacteria can turn that into new amino acids.

Answer 2

Nitrogen is used in various industrial processes such as in the production of ammonia for fertilizers, in the manufacturing of electronic components, and in food packaging to extend shelf life by displacing oxygen. It is also used in the production of explosives, as a coolant in cryogenic applications, and as a shielding gas in welding.

Answer 3

Nitrogen which happens to be the main gas in our atmosphere is used in food storage items such as crisp/chip packets to prevent the food from decomposing in oxygen.

Answer 4

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