Lithium azide

Summary

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

Lithium azide
Azid lithný2.png
Lithium-azide-unit-cell-3D-balls.png
  Li+       N3
Lithium azide unit cell[1]
Names
IUPAC name
lithium azide
Identifiers
  • 19597-69-4
3D model (JSmol)
  • Interactive image
ChemSpider
  • 79536
ECHA InfoCard 100.039.237 Edit this at Wikidata
  • 88163
  • DTXSID8066509 Edit this at Wikidata
  • InChI=1S/Li.N3/c;1-3-2/q+1;-1
  • [Li+].[N-]=[N+]=[N-]
Properties
LiN3
Melting point 115 °C (239 °F; 388 K)
36.12 g/100 g (10 °C)
62.07 g/100 g (15.5 °C)
66.41 g/100 g (16 °C)[2]
Solubility 20.26 g/100 g (16 °C, ethanol)[2]
Hazards
GHS labelling:
GHS06: Toxic
Safety data sheet (SDS) External SDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

PreparationEdit

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

NaN3 + LiNO3 → LiN3 + NaNO3
2 NaN3 + Li2SO4 → 2 LiN3 + Na2SO4[3]

It can also be prepared by reacting lithium sulfate with barium azide.

Ba(N3)2 + Li2SO4 → 2 LiN3 + BaSO4[2]

ReferencesEdit

  1. ^ Pringle, G. E.; Noakes, D. E. (February 1968). "The crystal structures of lithium, sodium and strontium azides". Acta Crystallogr. B. 24 (2): 262–269. doi:10.1107/S0567740868002062.
  2. ^ a b c Hála, Jiri. "IUPAC-NIST Solubility Data Series. 79. Alkali and Alkaline Earth Metal Pseudohalides" (PDF). nist.gov. Retrieved 31 January 2018.
  3. ^ "Λ » LambdaSyn – Darstellung von Lithiumazid".