Calcium compounds: calcium dibromide hexahydrate

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The calcium in calcium dibromide hexahydrate formally is in the oxidation state 2.

Calcium dibromide hexahydrate

  • Formula as often written: CaBr2.6H2O
  • Hill system formula: Br2Ca1H12O6
  • CAS registry number: [13477-28-6]
  • Formula weight: 307.978
  • Class: complex

Synonyms

  • calcium dibromide hexahydrate
  • calcium(II) bromide 6-water
  • calcium bromide 6-water

Physical properties

  • Colour: white
  • Appearance: solid
  • Melting point: 38°C (dehydrates)
  • Boiling point:
  • Density: 2290 kg m-3

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Element analysis

Element percentages for the elements in calcium dibromide hexahydrate
Element %
Br 51.89
Ca 13.01
H 3.93
O 31.17

Synthesis

Anhydrous calcium bromide [7789-41-5] is made by dehydration (250°C, vacuum) of the hexahydrate CaBr2.6H2O.

Isotope pattern

What follows is the calculated isotope pattern for the CaBr2.6H2O unit with the most intense ion set to 100%.

Formula: Ca1Br2H12O6

mass  %
306  50.9 _________________________
307 0.2
308 100.0 __________________________________________________
309 0.4
310 51.1 __________________________
311 0.3
312 3.1 __
313 0.1
314 1.2 _
315 0.0
316 0.2
317 0.0
318 0.1

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

  • R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
  • N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
  • F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
  • A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
  • R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
  • A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
  • A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
  • J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
  • D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
  • J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
  • J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.

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