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| Names | |
|---|---|
| Other names
Iodine(II) oxide, iodosyl, oxidoiodine
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| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| 1170 | |
PubChem CID
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CompTox Dashboard (EPA)
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|
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| Properties | |
| IO | |
| Molar mass | 142.903 g·mol−1 |
| Appearance | purple gas[citation needed] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Iodine monoxide is a binary inorganic compound of iodine and oxygen with the chemical formula IO•. A free radical, this compound is the simplest of many iodine oxides.[1][2][3] It is similar to the oxygen monofluoride, chlorine monoxide and bromine monoxide radicals.
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Transcription
Synthesis
Iodine monoxide can be obtained by the reaction between iodine and oxygen:[4]
- I2 + O2 → 2 IO
Chemical properties
Iodine monoxide decomposes to its prime elements:[citation needed]
- 2 IO → I2 + O2
Iodine monoxide reacts with nitric oxide:[5]
- 2 IO + 2 NO → I2 + 2 NO2
Atmosphere
Atmospheric iodine atoms (e.g. from iodomethane) can react with ozone to produce the iodine monoxide radical:[6][5]
- I2 + 2 O3 → 2 IO + 2 O2
This process can contribute to ozone depletion.[citation needed]
References
- ^ Dix, Barbara; Baidar, Sunil; Bresch, James F.; Hall, Samuel R.; Schmidt, K. Sebastian; Wang, Siyuan; Volkamer, Rainer (5 February 2013). "Detection of iodine monoxide in the tropical free troposphere". Proceedings of the National Academy of Sciences. 110 (6): 2035–2040. doi:10.1073/pnas.1212386110. ISSN 0027-8424. PMC 3568334.
- ^ "Iodine oxide". NIST.
- ^ Haynes, William M. (9 June 2015). CRC Handbook of Chemistry and Physics, 96th Edition. CRC Press. p. 2-17. ISBN 978-1-4822-6097-7. Retrieved 27 March 2023.
- ^ Nikitin, I. V. (13 March 2008). "HALOGEN MONOXIDES" (in Russian). Institute of Problems of Chemical Physics, Russian Academy of Sciences. Retrieved 27 March 2023.
- ^ a b Brasseur, Guy P.; Solomon, Susan (28 December 2005). Aeronomy of the Middle Atmosphere: Chemistry and Physics of the Stratosphere and Mesosphere. Springer Science & Business Media. p. 379. ISBN 978-1-4020-3824-2. Retrieved 27 March 2023.
- ^ "The Atmospheric Chemistry of Iodine Monoxide" (PDF). NIST. Retrieved 27 March 2023.
This page was last edited on 4 January 2024, at 12:28