| IUPAC name
| Other names
|Molar mass||174.926 g/mol|
|Appearance||White deliquescent solid|
|Melting point||310 °C (590 °F; 583 K) |
| 224.2 g/100 ml (0 °C)|
307.4 g/100 ml (16 °C)
|Solubility||Insoluble in diethyl ether|
|Solubility in ethanol||1.0366 g/100 ml (16 °C)|
|Vapor pressure||~0 mmHg|
Std enthalpy of
|Safety data sheet||Sigma-Aldrich|
| Lithium azide|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Caesium azide or cesium azide is an inorganic compound of caesium and azide with the formula CsN3.
Thermal decomposition of caesium azide yields caesium metal and nitrogen gas.
Caesium azide is a white deliquescent solid, very soluble in water.
Unlike other azides, caesium azide is not sensitive to mechanical shock.
Caesium azide is sold by chemical suppliers, but due to the high toxicity of azides, it's not readily available for the amateur chemist. It is also very expensive.
- Make caesium metal
Caesium azide is extremely toxic. The toxicity of azides is similar that of cyanides. There is no known antidote.
Caesium azide should be stored in spark-free containers, away from moisture or any acidic vapors.
When disposed of, it must never be poured down the drain, as it will react to either copper or lead plumbing to yield copper azide, which is highly sensitive. Hydrolysis can also occur in aqueous solutions, at certain pH. Caesium azide must be treated with nitrous acid before being discarded. The caesium ions should be recycled.
- Liew, Li-Anne; Moreland, John; Gerginov, Vladislav; Applied Physics Letters; vol. 90; nb. 11; (2007); Art.No: 114106
- Curtius, Th.; Rissom, J.; Journal fur praktische Chemie (Leipzig 1954); vol. 58; (1898); p. 282 - 282