Difference between revisions of "Perbromic acid"

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(Preparation)
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==Preparation==
 
==Preparation==
Perbromic acid is prepared by [[ion exchange]] of a solution of [[sodium perbromate]].<ref name="Kirk-Othmer"/><ref>{{citation | first = Evan H. | last = Appelman | title = Perbromic acid and perbromates: synthesis and some properties | journal = Inorg. Chem. | volume = 8 | issue = 2 | pages = 223–27 | year = 1969 | doi = 10.1021/ic50072a008}}.</ref><ref>{{citation | first = E. H. | last = Appelman | title = Perbromic acid and potassium perbromate | journal = Inorg. Synth. | year = 1972 | volume = 13 | pages = 1–9 | doi = 10.1002/9780470132449.ch1}}.</ref>
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Perbromic acid is prepared by [[ion exchange]] of a solution of [[sodium perbromate]].<ref name="Kirk-Othmer"/><ref>{{citation | first = Evan H. | last = Appelman | title = Perbromic acid and perbromates: synthesis and some properties | journal = Inorg. Chem. | volume = 8 | issue = 2 | pages = 223–27 | year = 1969 | doi = 10.1021/ic50072a008}}.</ref><ref>{{citation | first = E. H. | last = Appelman | title = Perbromic acid and potassium perbromate | journal = Inorg. Synth. | year = 1972 | volume = 13 | pages = 1–9 | doi = 10.1002/9780470132449.ch1}}.</ref> The acid can be concentrated up to 6&nbsp;M (55%) by evaporation of water under reduced pressure: more concentrated solutions can be prepared, but are unstable.<ref name="G&E"/>
  
 
==Properties==
 
==Properties==

Revision as of 09:01, 5 January 2011

Perbromic acid
IUPAC name Perbromic acid[note 1]
Other names Bromic(VII) acid
Hydroxy-λ7-bromanetrione
Hydroxidotrioxidobromine
Identifiers
InChI InChI=1/BrHO4/c2-1(3,4)5/h(H,2,3,4,5)
InChIKey LLYCMZGLHLKPPU-UHFFFAOYAZ
Standard InChI InChI=1S/BrHO4/c2-1(3,4)5/h(H,2,3,4,5)
Standard InChIKey LLYCMZGLHLKPPU-UHFFFAOYSA-N
CAS number [19445-25-1]
ChemSpider 167074
Properties[2]
Chemical formula HBrO4
Molar mass 144.91 g mol−1
Acidity (pKa) < 0
Related compounds
Other perhalic acids Perchloric acid
Periodic acid
Other compounds Hydrobromic acid
Hypobromous acid
Bromous acid
Bromic acid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Perbromic acid, HBrO4, is an oxoacid of bromine. It is a strong acid that is not known as a molecular species.[2][3]

Preparation

Perbromic acid is prepared by ion exchange of a solution of sodium perbromate.[3][4][5] The acid can be concentrated up to 6 M (55%) by evaporation of water under reduced pressure: more concentrated solutions can be prepared, but are unstable.[2]

Properties

Notes and references

Notes

  1. Perbromic acid is a retained name in IUPAC nomenclature.[1]

References

  1. Nomenclature of Inorganic Chemistry; IUPAC Recommendations 2005; Royal Society of Chemistry: Cambridge, 2005; p 287. ISBN 0-85404-438-8, <http://www.iupac.org/publications/books/rbook/Red_Book_2005.pdf>.
  2. 2.0 2.1 2.2 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 1020–22. ISBN 0-08-022057-6.
  3. 3.0 3.1 Ukeles, S. D.; Freiberg, M. Bromine, Inorganic Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology; John Wiley: New York, 2002. DOI: 10.1002/0471238961.021815131001031.
  4. Appelman, Evan H. Perbromic acid and perbromates: synthesis and some properties. Inorg. Chem. 1969, 8 (2), 223–27. DOI: 10.1021/ic50072a008.
  5. Appelman, E. H. Perbromic acid and potassium perbromate. Inorg. Synth. 1972, 13, 1–9. DOI: 10.1002/9780470132449.ch1.

External links

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