Periodate
Negatively-charged molecule made of oxygen and iodine / From Wikipedia, the free encyclopedia
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Periodate (/pəˈraɪ.ədeɪt/ pə-RY-ə-dayt) is an anion composed of iodine and oxygen. It is one of a number of oxyanions of iodine and is the highest in the series, with iodine existing in oxidation state +7. Unlike other perhalogenates, such as perchlorate, it can exist in two forms: metaperiodate IO−
4 and orthoperiodate IO5−
6. In this regard it is comparable to the tellurate ion from the adjacent group. It can combine with a number of counter ions to form periodates, which may also be regarded as the salts of periodic acid.
Quick Facts Names, Identifiers ...
The metaperiodate ion | |
The orthoperiodate ion | |
Names | |
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Systematic IUPAC name
tetraoxoiodate(1−) hexaoxoiodate(5−) | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider | |
PubChem CID |
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UNII |
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Properties | |
IO4− or IO65- | |
Conjugate acid | Periodic acid |
Related compounds | |
Other anions |
Perchlorate Perbromate Permanganate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Periodates were discovered by Heinrich Gustav Magnus and C. F. Ammermüller; who first synthesised periodic acid in 1833.[1]