Ammonium ozonide

Ammonium ozonide is an oxygen rich molecule containing an ammonium cation (NH4+) and an ozonide anion (O3−). Ammonium ozonide, like alkali ozonides, is a red solid.[1][2] Ammonium ozonide is stable at low temperatures, but it decomposes to ammonium nitrate at temperatures above -70 °C.[2]

Ammonium ozonide
Identifiers
3D model (JSmol)
  • InChI=1S/H3N.HO3/c;1-3-2/h1H3;1H
    Key: QNCFLJHTDUIYDM-UHFFFAOYSA-N
  • [NH4+].[O-]O[O]
Properties
H4NO3
Molar mass 66.036 g·mol−1
Appearance Deep red solid
Related compounds
Other anions
 Ammonium nitrate
Other cations
 Potassium ozonide, Caesium ozonide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation and decomposition

Ammonium ozonide is made by bubbling gaseous ozone through liquid ammonia at -110 °C.[1][2] This method suffers from a low yield.[1]

12 NH3 + 11 O3 → 9 NH4O3 + 3 NO2

Ammonium ozonide decomposes into ammonium nitrate, oxygen gas, and water. If the above reaction is done at high temperatures, these decomposition products result immediately and no ozonide is formed.[1]

4 NH4O3 → 2 NH4NO3 + O2 + 4 H2O

References
  1. Solomon, Irvine J.; Hattori, Kiyo.; Kacmarek, Andrew J.; Platz, Gerald M.; Klein, Morton J. (January 1962). "Ammonium Ozonide". Journal of the American Chemical Society. 84 (1): 34–36. doi:10.1021/ja00860a008. ISSN 0002-7863.
  2. McGee, Henry (July 1966). "Chemical Reactivity of Hydrogen, Nitrogen, and Oxygen Atoms at Temperatures below 100° K" (PDF): 1–98 – via NASA. {{cite journal}}: Cite journal requires |journal= (help)
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