Barium: barium dichloride

barium dichloride is known by the following synonyms:

  • barium dichloride
  • barium(II) chloride
  • barium chloride

The oxidation number of barium in barium dichloride is 2.

  • Formula: BaCl2
  • Hill system formula: Ba1Cl2
  • CAS registry number: [10361-37-2]
  • Formula weight: 208.232
  • Class: chloride
  • Colour: white
  • Appearance: crystalline solid
  • Melting point: 962°C
  • Boiling point: 1560°C
  • Density: 3900 kg m-3

Synthesis

Barium chloride is made by the neutralization of barium hydroxide with HCl in water. The product crystallizes as the hydrate BaCl2.2H2O [10326-27-9]. If this heated, dehydration to anhydrous BaCl2 occurs.

Ba(OH)2 + 2HCl(aq) → BaCl2(aq) + 2H2O

Solid state structure

  • Geometry of barium: 4 coordinate: tetrahedral
  • Prototypical structure: CaF2 (fluorite)

Crystal structure of barium dichloride

Element analysis

Element percentages in barium dichloride
Element %
Ba 65.95
Cl 34.05

Isotope pattern for BaCl2

THe chart below shows the calculated isotope pattern for the formula BaCl2 with the most intense ion set to 100%.

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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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