Difference between revisions of "Barium bromide"

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|  DeltaHf = −757.72 kJ mol<sup>−1</sup>
 
|  DeltaHf = −757.72 kJ mol<sup>−1</sup>
 
|  Entropy = 148.53 J K<sup>−1</sup> mol<sup>−1</sup>
 
|  Entropy = 148.53 J K<sup>−1</sup> mol<sup>−1</sup>
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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)
 
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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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{{wikipedia|Barium bromide}}
 
{{wikipedia|Barium bromide}}
 
*[http://www.webelements.com/compounds/barium/barium_dibromide_dihydrate.html WebElements]
 
*[http://www.webelements.com/compounds/barium/barium_dibromide_dihydrate.html WebElements]
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*{{EHC|107|name=Barium}}
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*{{HSG|046|name=Barium}}
  
 
[[Category:Barium compounds]]
 
[[Category:Barium compounds]]

Latest revision as of 11:47, 8 January 2011

Barium bromide
Identifiers
InChI InChI=1/Ba.2BrH/h;2*1H/q+2;;/p-2
InChIKey NKQIMNKPSDEDMO-NUQVWONBAE
Standard InChI InChI=1S/Ba.2BrH/h;2*1H/q+2;;/p-2
Standard InChIKey NKQIMNKPSDEDMO-UHFFFAOYSA-L
CAS number [10553-31-8]
EC number 234-140-0
ChemSpider 59728
Properties[1]
Chemical formula BaBr2
Molar mass 297.14 g mol−1
Appearance white crystalline solid
Density 4.781 g cm−3
Melting point

847 °C

Solubility in water 104.1 g/100 g (20 °C)
Thermochemistry[2]
Std enthalpy of formation ΔfHo298 −757.72 kJ mol−1
Standard molar entropy So298 148.53 J K−1 mol−1
Hazards[3][4]
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 fluoride
Barium chloride
Barium iodide
Other cations Beryllium bromide
Magnesium bromide
Calcium bromide
Strontium bromide
Radium bromide
Other compounds Barium hypobromite
Barium bromite
Barium bromate
Barium perbromate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Barium bromide dihydrate
Identifiers
InChI InChI=1/Ba.2BrH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
InChIKey HQQMRSGBIPFNSN-NUQVWONBAC
Standard InChI InChI=1S/Ba.2BrH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2
Standard InChIKey HQQMRSGBIPFNSN-UHFFFAOYSA-L
CAS number [7791-28-8]
EC number 234-140-0
ChemSpider 21241341
Properties[1]
Chemical formula BaBr2·2H2O
Molar mass 333.17 g mol−1
Appearance white crystalline solid
Density 3.58 g cm−3
Melting point

75 °C dehydr.

Solubility in water 151 g/100 g (20 °C)
Hazards[3][4]
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 bromide, BaBr2, is a binary compound of barium and bromine. It is used for producing other bromides[5] and as an X-ray storage phosphor.[6][7][8]

Notes and references

Notes

References

  1. ↑ 1.0 1.1 CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-80. ISBN 0-8493-0462-8.
  2. ↑ Barium dibromide. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/Ba.2BrH/h;2*1H/q+2;;/p-2>. (accessed 8 January 2011).
  3. ↑ 3.0 3.1 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.
  4. ↑ 4.0 4.1 "Barium, soluble compounds (as Ba)" in 29 C.F.R. § 1910.1000 Table Z-1, 54 FR 36767, September 5, 1989, as amended.
  5. ↑ 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.
  6. ↑ Nensel, B.; Thielemann, P.; Decker, G. Are storage phosphors a useful tool for soft x-ray imaging diagnostics? Spectral sensitivity and spatial resolution in the 0.07 to 14 nm range. J. Appl. Phys. 1998, 83 (4), 2276–81. DOI: 10.1063/1.366968.
  7. ↑ Thoms, M. An improved X-ray detector for use at synchrotrons. Nucl. Instrum. Methods Phys. Res., Sect. A 1998, 413 (1), 175–84. DOI: 10.1016/S0168-9002(98)00199-5.
  8. ↑ Edgar, A.; Secu; Williams, G. V. M.; Schweizer, S.; Spaeth, J.-M. Structural phase changes in barium bromide nano-crystals in a fluorobromozirconate glass-ceramic x-ray storage phosphor. J. Phys.: Condens. Matter 2001, 13 (28), 6259–70. DOI: 10.1088/0953-8984/13/28/308.

Further reading

External links

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