It is colorless, odourless, and tasteless.
Gaseous nitrogen is used in the chemical and petroleum industries for storage tank blanketing.
It is also used extensively by the electronics and metals industries for its inert properties. Liquid nitrogen is also used as a refrigerant and for freezing food. An iron catalyst Ammonia is a key industrial chemical, it's used to make nitric acid which is used to make fertilizers and explosives. It has strong oxidizing and life-sustaining properties. It is used in medicine and in the steelmaking and metal-cutting industries.