Iodite

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Iodite
Names
IUPAC name
iodite
Systematic IUPAC name
dioxidoiodate(1−)
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/HIO2/c2-1-3/h(H,2,3)/p-1
  • [O-]I=O
Properties
IO
2
Molar mass 58.90327 gm mol−1
Conjugate acid Iodous acid
Related compounds
Other anions
Chlorite
Bromite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Iodite is an anion composed of iodine and oxygen, with the chemical formula IO
2
. Within this ion the iodine exists in oxidation state III.

Iodites (including iodous acid) are highly unstable and have never been isolated.[1] However they have been detected as intermediates in the conversion between iodide and iodate.[2][3]

Other oxyanions

Iodine can assume oxidation states of −1, +1, +3, +5, or +7. A number of neutral iodine oxides are also known.

Iodine oxidation state −1 +1 +3 +5 +7
Name iodide hypoiodite iodite iodate periodate
Formula I IO IO
2
IO
3
IO
4
or IO5−
6

References

  1. ^ Ropp, R.C. (2013). Encyclopedia of the alkaline earth compounds. Oxford: Elsevier Science. p. 96. ISBN 0444595538.
  2. ^ Gupta, Yugul Kishore; Sharma, Devendra Nath (August 1971). "Kinetics and mechanism of the reduction of iodate to iodite by bromide in the presence of phenol". The Journal of Physical Chemistry. 75 (16): 2516–2522. doi:10.1021/j100685a018.
  3. ^ Gilles, Mary K.; Polak, Mark L.; Lineberger, W. C. (1992). "Photoelectron spectroscopy of the halogen oxide anions FO−, ClO−, BrO−, IO−, OClO−, and OIO−". The Journal of Chemical Physics. 96 (11): 8012. Bibcode:1992JChPh..96.8012G. doi:10.1063/1.462352.