Calcium bromide

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Calcium bromide
Identifiers
InChI InChI=1/2BrH.Ca/h2*1H;/q;;+2/p-2
InChIKey WGEFECGEFUFIQW-NUQVWONBAA
Standard InChI InChI=1S/2BrH.Ca/h2*1H;/q;;+2/p-2
Standard InChIKey WGEFECGEFUFIQW-UHFFFAOYSA-L
CAS number [7789-41-5]
EC number 232-164-6
ChemSpider 23010
Properties[1]
Chemical formula CaBr2
Molar mass 199.89 g mol−1
Appearance white crystalline solid
Density 3.353 g cm−3
Melting point

730 °C

Boiling point

809 °C

Solubility in water 142 g/100 g (20 °C)
Thermochemistry[2]
Std enthalpy of formation ΔfHo298 −683.25 kJ mol−1
Standard molar entropy So298 129.64 J K−1 mol−1
Related compounds
Other anions Calcium fluoride
Calcium chloride
Calcium iodide
Other cations Beryllium bromide
Magnesium bromide
Strontium bromide
Barium bromide
Radium bromide
Other compounds Calcium hypobromite
Calcium bromite
Calcium bromate
Calcium perbromate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Calcium bromide, CaBr2, is a binary compound of calcium and bromine. It is used in the oil and gas industry as a 52–54% aqueous solution, with a density greater than 1.7 g cm−3, as a well completion and packer brine.[3]

Notes and references

Notes

References

  1. CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-86. ISBN 0-8493-0462-8.
  2. Calcium dibromide. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/2BrH.Ca/h2*1H;/q;;+2/p-2>. (accessed 8 January 2011).
  3. 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.

Further reading

External links

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