Iodine oxide

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Iodine oxides are chemical compounds and oxides of iodine. There exist multiple oxides as iodine has more than one oxidation state.

I2O4 I2O5 I4O9
Synonyms diiodine tetraoxide diiodine pentaoxide tetraiodine nonaoxide
CAS registry 12029-98-0
Appearance crystalline solid
Oxidation state +4 +5 +6
Melting point decomp. 75°C decomp. 300 - 350°C > 100°C
Specific gravity 4.2 4.8
Solubility water decomp. to HIO3 + I2 187 g/100 ml
Iodine oxides [1].


The iodide oxide free radical (IO) is a known Ozone depletion agent [2]. Atmospheric iodine containing compounds form iodine radicals which react with ozone to iodine oxide radicals (IO) and oxygen. The IO radicals then in turn participate in other ozone consuming chemical reactions.

[edit] See also

HI He
LiI BeI2 BI3 CI4 NI3 I2O4 I2O5 I4O9 IF IF3 IF5 IF7 Ne
NaI MgI2 AlI3 SiI4 PI3 S ICl ICl3 Ar
KI CaI2 Sc TiI4 V Cr MnI2 Fe Co NiI2 CuI ZnI2 Ga2I6 GeI2 GeI4 As Se IBr Kr
RbI SrI2 Y ZrI4 Nb Mo Tc Ru Rh Pd AgI CdI2 InI3 SnI4 SnI2 SbI3 TeI4 I Xe
CsI BaI2 Hf Ta W Re Os Ir Pt AuI HgI2 TlI PbI2 Bi Po At Rn
Fr Ra Rf Db Sg Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh Uus Uuo
↓
La Ce Pr Nd Pm SmI2 Eu Gd TbI3 Dy Ho Er Tm Yb Lu
Ac ThI4 Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr


[edit] References

  1. ^ Lide, D. R. (Ed.) (2005). CRC Handbook of Chemistry and Physics (86th Edn.). Boca Raton (FL):CRC Press. ISBN 0-8493-0486-5. 
  2. ^ Halogens Hover In Antarctic Iodine oxide and bromine oxide deplete atmospheric ozone Rachel Petkewich Chemical & Engineering News July 23, 2007 Volume 85, Number 30 p. 9 http://pubs.acs.org/cen/news/85/i30/8530notw4.html