Chemistry:Iodite
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(Redirected from Chemistry:Iodous acid)
Short description: Ion
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| Names | |
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| IUPAC name
iodite
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| Systematic IUPAC name
dioxidoiodate(1−) | |
| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties | |
| IO−2 | |
| Molar mass | 58.90 g/mol |
| Conjugate acid | Iodous acid |
| Related compounds | |
Other anions
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Chlorite Bromite |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Tracking categories (test):
The iodite ion, or iodine dioxide anion, is the halite with the chemical formula IO−2. Within the ion the Iodine exists in the oxidation state of +3.
Iodite anion
Iodites (including iodous acid) are highly unstable and have been observed[1] but never isolated.[citation needed] They will rapidly disproportionate to molecular Iodine and Iodates.[2] However, they have been detected as intermediates in the conversion between iodide and iodate.[3][4]
Iodous acid
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| Names | |||
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| IUPAC name
iodous acid
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3D model (JSmol)
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PubChem CID
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| Properties | |||
| HIO2 | |||
| Molar mass | 159.91 g/mol | ||
| Conjugate base | Iodite | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
| Infobox references | |||
Tracking categories (test):
Iodous acid is acid form of the iodite ion, with the formula HIO2.
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 |
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| Name | Iodide | Hypoiodite | Iodite | Iodate | periodate |
| Formula | I− | IO− | IO−2 | IO−3 | IO−4 or IO5−6 |
References
- ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ↑ 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.
- ↑ 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. doi:10.1063/1.462352. Bibcode: 1992JChPh..96.8012G.
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