Difference between revisions of "Barium bromite"

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{{chembox
 
{{chembox
 
| IUPACName = Barium bromite
 
| IUPACName = Barium bromite
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| Section1 = {{Chembox Identifiers
 
| Section1 = {{Chembox Identifiers
 
|  InChI=1/Ba.2BrO2/c;2*2-1-3/q+2;2*-1
 
|  InChI=1/Ba.2BrO2/c;2*2-1-3/q+2;2*-1
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|  StdInChI=1S/Ba.2BrHO2/c;2*2-1-3/h;2*(H,2,3)/q+2;;/p-2
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|  StdInChIKey = PGLMIJFEJJTLFA-UHFFFAOYSA-L
 
|  CASNo = 14899-01-5
 
|  CASNo = 14899-01-5
 
   }}
 
   }}
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|  Formula = Ba(BrO<sub>2</sub>)<sub>2</sub>
 
|  Formula = Ba(BrO<sub>2</sub>)<sub>2</sub>
 
|  MolarMass = 361.13 g mol<sup>−1</sup>
 
|  MolarMass = 361.13 g mol<sup>−1</sup>
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  }}
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| Section7 = {{Chembox Hazards
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|  Reference = <ref name="CLP">{{CLP Regulation|index=056-002-00-7|page=438}}</ref><ref name="PEL">{{29CFR1910.1000Z1|entry=Barium, soluble compounds (as Ba)}}.</ref>
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|  EUIndex = 056-002-00-7
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|  GHSPictograms = {{GHS07|Acute Tox. 4 (oral, inhal.)}}
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|  GHSSignalWord = WARNING
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|  HPhrases = {{H-phrases|302|332}}
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|  PPhrases = {{P-phrases|261|264|270|271|301+312|304+340|330|501}}
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|  PEL = 0.5 mg m<sup>−3</sup> TWA (as Ba)
 
   }}
 
   }}
 
| Section8 = {{Chembox Related
 
| Section8 = {{Chembox Related
 
|  OtherAnions = [[Barium chlorite]]
 
|  OtherAnions = [[Barium chlorite]]
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|  OtherCations = [[Strontium bromite]]
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|  OtherCations = [[Calcium bromite]]<br/>[[Strontium bromite]]
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|  OtherCpds = [[Barium bromide]]<br/>[[Barium hypobromite]]<br/>[[Barium bromate]]
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  }}
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}}
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{{chembox
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| Name = Barium bromite monohydrate
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| IUPACName = Barium bromite — water (1/1)
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| Section1 = {{Chembox Identifiers
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|  StdInChI=1S/Ba.2BrHO2.H2O/c;2*2-1-3;/h;2*(H,2,3);1H2/q+2;;;/p-2
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|  StdInChIKey = ZGOHOJQCJKGCOG-UHFFFAOYSA-L
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|  CASNo =
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  }}
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| Section2 = {{Chembox Properties
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|  Formula = Ba(BrO<sub>2</sub>)<sub>2</sub>·H<sub>2</sub>O
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|  MolarMass = 379.15 g mol<sup>−1</sup>
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  }}
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| Section7 = {{Chembox Hazards
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|  Reference = <ref name="CLP"/><ref name="PEL"/>
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|  EUIndex = 056-002-00-7
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|  GHSPictograms = {{GHS07|Acute Tox. 4 (oral, inhal.)}}
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|  GHSSignalWord = WARNING
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|  HPhrases = {{H-phrases|302|332}}
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|  PPhrases = {{P-phrases|261|264|270|271|301+312|304+340|330|501}}
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|  PEL = 0.5 mg m<sup>−3</sup> TWA (as Ba)
 
   }}
 
   }}
 
}}
 
}}
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'''Barium bromite''', Ba(BrO<sub>2</sub>)<sub>2</sub>, is formally the [[barium]] [[salt]] of [[bromous acid]]. It was the first [[bromite]] to be isolated, as the monohydrate,<ref>{{Greenwood&Earnshaw1st|page=1009}}.</ref> which is formed by the controlled [[disproportionation]] of [[barium hypobromite]] at pH&nbsp;11–12 and 0&nbsp;°C.<ref>{{citation | first1 = R. | last1 = Kircher | first2 = R. | last2 = Periat | title = Preparation du bromite de baryum cristallisé | journal = Ind. Chim. Belge, Suppl.&nbsp;1 | pages = 877 | year = 1959}}.</ref><ref>{{citation | inventor1-first = René | inventor1-last = Kircher | inventor2-first = Robert | inventor2-last = Periat | assignee = Société d'Etudes Chimiques pour l'Industrie et l'Agriculture | title = Verfahren zur Herstellung von Bariumbromit durch Disproportionierung von Bariumhypobromit | country-code = DE | patent-number = 1076096 | publication-date = 1960-02-25}}.</ref><ref>{{citation | first1 = A. | last1 = Massagli | first2 = A. | last2 = Indelli | first3 = F. | last3 = Pergola | title = Kinetic investigation of the decomposition of bromite | journal = Inorg. Chim. Acta | volume = 4 | issue = 4 | pages = 593–96 | year = 1970 | doi = 10.1016/S0020-1693(00)93357-7}}.</ref> The anhydrous salt can be prepared by heating [[barium bromate]] to 250&nbsp;°C in vacuo.<ref>{{citation | first1 = A. J. | last1 = Downs | first2 = C. J. | last2 = Adams | editor1-first = J. C., Jr. | editor1-last = Bailar | editor2-first = H. J. | editor2-last = Emeleus | editor3-first = R. | editor3-last = Nyholm | editor4-first = A. F. | editor4-last = Trotman-Dickenson | title = Comprehensive Inorganic Chemistry | volume = 2 | publisher = Pergamon | location = Oxford | year = 1973 | pages = 1419–20}}.</ref>
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'''Barium bromite''', Ba(BrO<sub>2</sub>)<sub>2</sub>, is formally the [[barium]] [[salt]] of [[bromous acid]]. It was the first [[bromite]] to be isolated, as the monohydrate,<ref>{{Greenwood&Earnshaw1st|page=1009}}.</ref><ref name="FR1216216">{{citation | inventor1-last = Meybeck | inventor1-first = Jean | inventor2-last = Kircher | inventor2-first = René | inventor3-last = Breiss | inventor3-first = Jacqueline | assignee = Société d'Etudes Chimiques pour l'Industrie et l'Agriculture | title = Procédé d'obtention de dérévés oxygénés du brome, à l'état solide, et produits industriels en résultant | country-code = FR | patent-number = 1216216 | publication-date = 1960-04-22}}; {{USpatent| title = Alkaline Earth Bromites | number = 3178262}}.</ref> which is formed by the controlled [[disproportionation]] of [[barium hypobromite]] at pH&nbsp;11–12 and 0&nbsp;°C.<ref name="FR1216216"/><ref>{{citation | first1 = R. | last1 = Kircher | first2 = R. | last2 = Periat | title = Preparation du bromite de baryum cristallisé | journal = Ind. Chim. Belge, Suppl.&nbsp;1 | pages = 877 | year = 1959}}.</ref><ref>{{citation | inventor1-first = René | inventor1-last = Kircher | inventor2-first = Robert | inventor2-last = Periat | assignee = Société d'Etudes Chimiques pour l'Industrie et l'Agriculture | title = Verfahren zur Herstellung von Bariumbromit durch Disproportionierung von Bariumhypobromit | country-code = DE | patent-number = 1076096 | publication-date = 1960-02-25}}.</ref> The anhydrous salt can be prepared by heating [[barium bromate]] to 250&nbsp;°C in vacuo.<ref>{{citation | first1 = A. J. | last1 = Downs | first2 = C. J. | last2 = Adams | editor1-first = J. C., Jr. | editor1-last = Bailar | editor2-first = H. J. | editor2-last = Emeleus | editor3-first = R. | editor3-last = Nyholm | editor4-first = A. F. | editor4-last = Trotman-Dickenson | title = Comprehensive Inorganic Chemistry | volume = 2 | publisher = Pergamon | location = Oxford | year = 1973 | pages = 1419–20}}.</ref>
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:2 Ba(BrO<sub>3</sub>)<sub>2</sub> &rarr; 2 Ba(BrO<sub>2</sub>)<sub>2</sub> + O<sub>2</sub>
  
 
==Notes and references==
 
==Notes and references==
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===References===
 
===References===
 
{{reflist}}
 
{{reflist}}
 +
 +
===Further reading===
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*{{citation | inventor1-last = Kircher | inventor1-first = René | inventor2-last = Périat | inventor2-first = Robert | assignee = Société d'Etudes Chimiques pour l'Industrie et l'Agriculture | title = Process for producing alkaline earth metal bromites | country-code = US | patent-number = 3095267 | publication-date = 1963-06-25}}.
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*{{citation | inventor1-last = Breiss | inventor1-first = Jean | inventor2-last = Kirchner | inventor2-first = René | inventor3-last = Zimmermann | inventor3-first = Jean-Pierre | assignee = Société d'Etudes Chimiques pour l'Industrie et l'Agriculture | title = Procédé de préparation des bromites alcalins et alcalino-terreux | country-code = FR | patent-number = 1315034 | publication-date = 1963-01-18}}; {{USpatent | title = Method for preparing alkali metal and alkaline earth metal bromites | number = 3223477}}.
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==External links==
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*{{EHC|107|name=Barium}}
 +
*{{HSG|046|name=Barium}}
  
 
[[Category:Barium compounds]]
 
[[Category:Barium compounds]]

Latest revision as of 11:52, 8 January 2011

Barium bromite
IUPAC name Barium bromite
Other names Barium bromate(III)
Identifiers
InChI InChI=1/Ba.2BrO2/c;2*2-1-3/q+2;2*-1
Standard InChI InChI=1S/Ba.2BrHO2/c;2*2-1-3/h;2*(H,2,3)/q+2;;/p-2
Standard InChIKey PGLMIJFEJJTLFA-UHFFFAOYSA-L
CAS number [14899-01-5]
Properties
Chemical formula Ba(BrO2)2
Molar mass 361.13 g mol−1
Hazards[1][2]
EU index number 056-002-00-7
GHS pictograms Acute Tox. 4 (oral, inhal.)
GHS signal word WARNING
GHS hazard statements H302, H332
GHS precautionary statements P261, P264, P270, P271, P301+312, P304+340, P330, P501
PEL (U.S.) 0.5 mg m−3 TWA (as Ba)
Related compounds
Other anions Barium chlorite
Other cations Calcium bromite
Strontium bromite
Other compounds Barium bromide
Barium hypobromite
Barium bromate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Barium bromite monohydrate
IUPAC name Barium bromite — water (1/1)
Identifiers
Standard InChI InChI=1S/Ba.2BrHO2.H2O/c;2*2-1-3;/h;2*(H,2,3);1H2/q+2;;;/p-2
Standard InChIKey ZGOHOJQCJKGCOG-UHFFFAOYSA-L
Properties
Chemical formula Ba(BrO2)2·H2O
Molar mass 379.15 g mol−1
Hazards[1][2]
EU index number 056-002-00-7
GHS pictograms Acute Tox. 4 (oral, inhal.)
GHS signal word WARNING
GHS hazard statements H302, H332
GHS precautionary statements P261, P264, P270, P271, P301+312, P304+340, P330, P501
PEL (U.S.) 0.5 mg m−3 TWA (as Ba)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Barium bromite, Ba(BrO2)2, is formally the barium salt of bromous acid. It was the first bromite to be isolated, as the monohydrate,[3][4] which is formed by the controlled disproportionation of barium hypobromite at pH 11–12 and 0 °C.[4][5][6] The anhydrous salt can be prepared by heating barium bromate to 250 °C in vacuo.[7]

2 Ba(BrO3)2 → 2 Ba(BrO2)2 + O2

Notes and references

Notes

References

  1. ↑ 1.0 1.1 Index no. 056-002-00-7 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 438.
  2. ↑ 2.0 2.1 "Barium, soluble compounds (as Ba)" in 29 C.F.R. § 1910.1000 Table Z-1, 54 FR 36767, September 5, 1989, as amended.
  3. ↑ Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; p 1009. ISBN 0-08-022057-6.
  4. ↑ 4.0 4.1 Meybeck, Jean; Kircher, René; Breiss, Jacqueline (Société d'Etudes Chimiques pour l'Industrie et l'Agriculture) Procédé d'obtention de dérévés oxygénés du brome, à l'état solide, et produits industriels en résultant. FR Patent 1216216, published 22 April 1960; Alkaline Earth Bromites. US Patent 3178262.
  5. ↑ Kircher, R.; Periat, R. Preparation du bromite de baryum cristallisé. Ind. Chim. Belge, Suppl. 1 1959, 877.
  6. ↑ Kircher, René; Periat, Robert (Société d'Etudes Chimiques pour l'Industrie et l'Agriculture) Verfahren zur Herstellung von Bariumbromit durch Disproportionierung von Bariumhypobromit. DE Patent 1076096, published 25 February 1960.
  7. ↑ Downs, A. J.; Adams, C. J. In Comprehensive Inorganic Chemistry; Bailar, J. C., Jr.; Emeleus, H. J.; Nyholm, R., et al., Eds.; Pergamon: Oxford, 1973; Vol. 2, pp 1419–20.

Further reading

External links

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