In the chemical industry, nitrogen gas serves as an important safety measure against fire and explosion, as well as maintaining product integrity.
Chemical tanks containing flammable or specialty material are typically blanketed with nitrogen gas to eliminate the risk of a fire or explosion.
Chemical processing and storage facilities will also fill the tank head space with nitrogen gas to eliminate the risk of product contamination or degradation.
When transferring products between tanks, nitrogen gas is typically the pressure transfer gas of choice and is often used to sparge unwanted contaminants from liquid.