Lithium azide

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Lithium azide
CAS number 19597-69-4
PubChem 88163
ChemSpider 79536
Jmol-3D images Image 1
Molecular formula LiN3
Molar mass 48.96 g mol−1
Melting point 115°C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references
Lithium azide unit cell[1]

Lithium azide is the lithium salt of hydrazoic acid. It is an unstable and toxic compound that decomposes into lithium and nitrogen when heated.


It can be prepared by metathesis reaction between sodium azide and lithium nitrate:

NaN3 + LiNO3 → LiN3 + NaNO3

or lithium sulfate solutions:

2 NaN3 + Li2SO4 → 2 LiN3 + Na2SO4[2]


  1. ^ Pringle, G. E.; Noakes, D. E. (February 1968). "The crystal structures of lithium, sodium and strontium azides". Acta Cryst. B24 (2): 262–269. doi:10.1107/S0567740868002062. 
  2. ^