Lithium azide
Lithium azide is the lithium salt of hydrazoic acid. It is an unstable and toxic compound that decomposes into lithium and nitrogen when heated.
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| Names | |
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| IUPAC name
lithium azide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.039.237  |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| LiN3 | |
| Molar mass | 48.96 g·mol−1 |
| 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 | |
| Safety data sheet | External SDS |
| GHS labelling: | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Preparation
It can be prepared by metathesis reaction between sodium azide and lithium nitrate or lithium sulfate solutions:
- NaN3 + LiNO3 → LiN3 + NaNO3
- 2NaN3 + Li2SO4 → 2LiN3 + Na2SO4[3]
It can also be prepared by reacting lithium sulfate with barium azide.
- Ba(N3)2 + Li2SO4 → 2LiN3 + BaSO4[2]
References
- 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.
- Hála, Jiri. "IUPAC-NIST Solubility Data Series. 79. Alkali and Alkaline Earth Metal Pseudohalides" (PDF). nist.gov. Retrieved 31 January 2018.
- http://www.lambdasyn.org/synfiles/lithiumazid.htm
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