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| Names | |
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| IUPAC name Ammonium azide | |
| Other names Ammonium trinitride | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.032.093 
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| EC Number |
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| PubChem CID | |
| CompTox Dashboard (EPA) | |
InChI
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SMILES
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| Properties | |
| Chemical formula | [NH4]N3 |
| Molar mass | 60.060 g·mol |
| Appearance | Colorless or white crystalline solid |
| Odor | Odorless |
| Density | 1.3459 g/cm |
| Melting point | 160 °C (320 °F; 433 K) |
| Boiling point | 400 °C (752 °F; 673 K) (decomposes) |
| Structure | |
| Crystal structure | Orthorhombic |
| Space group | Pman |
| Lattice constant | a = 8.930, b = 8.642, c = 3.800 |
| Formula units (Z) | 4 |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
| Main hazards | Very toxic, explosive |
| Related compounds | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
 Y verify (what is ?)
Infobox references
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Ammonium azide is the chemical compound with the formula [NH4]N3, being the salt of ammonia and hydrazoic acid. Like other inorganic azides, this colourless crystalline salt is a powerful explosive, although it has a remarkably low sensitivity. [NH4]N3 is physiologically active and inhalation of small amounts causes headaches and palpitations. It was first obtained by Theodor Curtius in 1890, along with other azides.
Structure
Ammonium azide is ionic, meaning it is a salt consisting of ammonium cations [NH4] and azide anions N−3, therefore its formula is [NH4][N3]. It is a structural isomer of tetrazene. Ammonium azide contains about 93% nitrogen by mass.
References
- Frevel, Ludo K. (1 January 1936). "The Crystal Structure of Ammonium Azide, NH4N3". Zeitschrift für Kristallographie - Crystalline Materials. 94 (1–6): 197. doi:10.1524/zkri.1936.94.1.197. S2CID 100695095.
- Yakovleva, G. S.; Kurbangalina, R. Kh.; Stesik, L. N. (1977). "Detonation properties of ammonium azide". Combustion, Explosion, and Shock Waves. 13 (3): 405. Bibcode:1977CESW...13..405Y. doi:10.1007/BF00740326. S2CID 93777687.
- Salim de Amorim, Helio; do Amaral, M. R.; Pattison P.; Ludka I. P.; Mendes, J. C. (2002). "Ammonium azide: A Commented Example of an Ab Initio Structure (Re-)Determination From X-Ray Diffraction" (PDF). Revista de la Sociedad Química de Mexico. 45 (4): 313–319. Archived (PDF) from the original on 2012-04-06.
- Curtius, Th. (1890). "Ueber Stickstoffwasserstoffsäure (Azoimid) N3H". Berichte der Deutschen Chemischen Gesellschaft. 23 (2): 3023–3033. doi:10.1002/cber.189002302232.
Further reading
- Schmidt, Eckart W. (2022). "Ammonium Azide". Azides and Azido Compounds. Encyclopedia of Liquid Fuels. De Gruyter. pp. 893–900. doi:10.1515/9783110750287-011. ISBN 978-3-11-075028-7.
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