Iodine nitrate


Iodine nitrate is a chemical with formula INO3.[1] It is a covalent molecule with a structure of I–O–NO2.[2]

Iodine nitrate
Iodine nitrate.png
IUPAC name
iodo nitrate
  • 14696-81-2 checkY
3D model (JSmol)
  • Interactive image
  • 67165553
  • 13406959
  • InChI=1S/INO3/c1-5-2(3)4
  • [N+](=O)([O-])OI
Molar mass 188.908 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references


The compound was first produced by the reaction of mercury(II) nitrate and iodine in ether.[1]

Other nitrate salts and solvents can also be used.[1]

As a gas it is slightly unstable, decaying with a rate constant of −3.2×10−2 s−1.[2] The possible formation of this chemical in the atmosphere and its ability to destroy ozone have been studied. Potential reactions in this context are:[3]

IONO2 → IO + NO2
IONO2 → I + NO3
I + O3 → IO + O2


  1. ^ a b c Hassner, Alfred (15 April 2001). "Iodine Nitrate". Encyclopedia of Reagents for Organic Synthesis: ri016. doi:10.1002/047084289X.ri016. ISBN 9780470842898.
  2. ^ a b Barnes, Ian; Becker, Karl H.; Starcke, Juergen (November 1991). "Fourier-transform IR spectroscopic observation of gaseous nitrosyl iodine, nitryl iodine, and iodine nitrate". The Journal of Physical Chemistry. 95 (24): 9736–9740. doi:10.1021/j100177a026.
  3. ^ Allan, B. J.; Plane, J. M. C. (September 2002). "A Study of the Recombination of IO with NO2 and the Stability of INO3: Implications for the Atmospheric Chemistry of Iodine". The Journal of Physical Chemistry A. 106 (37): 8634–8641. Bibcode:2002JPCA..106.8634A. doi:10.1021/jp020089q.