ammonium azide

{{Chembox

| Watchedfields = changed

| verifiedrevid = 454689134

| Name = Ammonium azide

| ImageFile = ammonium azide.png

| ImageFile1 = Ammonium-azide-3D-balls.png

| ImageNameL1 = Ball-and-stick model of the ammonium cation

| ImageNameR1 = Ball-and-stick model of the azide anion

| ImageFile2 = Ammonium-azide-unit-cell-3D-bs-17.png

| OtherNames = Ammonium trinitride

| IUPACName = Ammonium azide

| SystematicName =

| Section1 = {{Chembox Identifiers

| ChemSpiderID = 8488511

| CASNo = 12164-94-2

| EINECS = 235-315-4

| PubChem = 61555

| InChI = 1S/HN3.H3N/c1-3-2;/h1H;1H3

| InChIKey = MXZUDRZKSUUQRR-UHFFFAOYSA-N

| SMILES = [NH+4].[N-]=[N+]=[N-]

}}

| Section2 = {{Chembox Properties

| Formula = {{chem2|[NH4]N3}}

| H=4|N=4

| Appearance = Colorless or white crystalline solid

| Odor = Odorless

| Density = 1.3459 g/cm³

| Solubility =

| Solvent1 =

| Solubility1 =

| Solvent2 =

| Solubility2 =

| MeltingPtC = 160

| BoilingPtC = 400

| BoilingPt_notes = (decomposes)

}}

| Section3 = {{Chembox Structure

| Coordination =

| CrystalStruct = Orthorhombic

| Structure_ref = {{cite journal|last1=Frevel|first1=Ludo K.|title=The Crystal Structure of Ammonium Azide, NH₄N₃|journal=Zeitschrift für Kristallographie - Crystalline Materials|date=1 January 1936|volume=94|issue=1–6|page=197|doi=10.1524/zkri.1936.94.1.197|s2cid=100695095 }}

| SpaceGroup = P_man

| PointGroup =

| LattConst_a = 8.930

| LattConst_b = 8.642

| LattConst_c = 3.800

| LattConst_alpha =

| LattConst_beta =

| LattConst_gamma =

| LattConst_ref =

| LattConst_Comment =

| UnitCellVolume =

| UnitCellFormulas = 4

}}

| Section7 = {{Chembox Hazards

| MainHazards = Very toxic, explosive

| FlashPt =

| AutoignitionPt =

}}

| Section8 = {{Chembox Related

| OtherAnions = {{ubl|Ammonium nitrate|Ammonium nitrite|Ammonium cyanide|Ammonium sulfamate|Ammonium carbamate}}

| OtherCations = {{ubl|Lithium azide|Sodium azide|Potassium azide|Rubidium azide|Caesium azide|Silver azide}}

| OtherCompounds = {{ubl|Ammonia|Hydrazoic acid|Nitrosyl azide|Chlorine azide}}

}}

}}

Ammonium azide is the chemical compound with the formula {{chem2|[NH4]N3|auto=1}}, 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. {{chem2|[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.