Used as a preservative in laboratory reagents and biological solutions. Common in biochemistry and microbiology labs to inhibit microbial growth. Utilized in chemical synthesis (source of azide group). Historically used in automobile airbags to generate nitrogen gas rapidly.

Primarily acts as a biocide and chemical reagent preventing contamination in lab solutions and serving as a nitrogen-releasing agent in chemical processes.

A white crystalline water-soluble inorganic compound. It is highly reactive and toxic and can decompose to release nitrogen gas.