Nitrogen is a chemical element that has the symbol n, the atomic number of 7 and an atomic mass 14. 00674 u. Nitrogen is colorless, odorless, and tasteless gas. It is non flammable and will not support combustion. Atmospheric air contains 78. 09% nitrogen, the gas is slightly lighter than air and slightly soluble in water. Nitrogen condenses at its boiling point, -195°c to a colorless and odorless liquid that is lighter than water. When liquid nitrogen is vaporized and than heated to ambient temperature, it absorbs a large quantity of heat. Nitrogen is separated from air, by distillation, absorption of diffusion.
Nitrogen comes in 6 different Grades, 98.0 % to 99.9999 % and also in Liquid form too.Nitrogen is an industrial gas produced by fractional distillation of liquid air or by mechanical means using gaseous air. It is used in serving as an inert replacement for air where oxidation is undesirable. It is useful in manufacturing of stainless steel. It is also used on top of liquid explosives as a safety measure. Nitrogen is used as shielding gas during plasma cutting with argon / hydrogen as plasma gas. When Nitrogen is dried & pressurized, it can be used as a dielectric gas for high voltage equipment.
o Raw materialo Shrink pitting
o Inert gas safety system
o Cryogenic grinding
o Protection against fire & explosion
o Human & veterinary medicine
o Metallurgical industry
o Ground freezing