Sodium nitride
| Names | |
|---|---|
| IUPAC name
Sodium nitride
| |
| Identifiers | |
3D model (JSmol)
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|
| ECHA InfoCard | 100.032.017 |
| EC Number |
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| |
| |
| Properties | |
| Na3N | |
| Molar mass | 82.976 g/mol |
| Appearance | reddish brown or dark blue solid |
| Melting point | 104 °C (219 °F; 377 K) (decomposes) |
| reacts | |
| Structure | |
| Cubic, cP4 | |
| Pm3m | |
| Thermochemistry | |
Std enthalpy of
formation (ΔfH⦵298) |
-151 J/mol |
| Related compounds | |
Other anions
|
Sodium amide Sodium imide |
Other cations
|
Lithium nitride Potassium nitride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
| |
Sodium nitride is the inorganic compound with the chemical formula Na3N. In contrast to lithium nitride and some other nitrides, sodium nitride is unstable. It readily decomposes into its elements:
- 2 Na3N → 6 Na + N2
It can be generated by various methods. The instability of sodium nitride is relevant to the mechanism of action of sodium azide in airbags:
- 2 NaN3N → 2 Na + 3 N2