Barium compounds: barium dichloride dihydrate

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The barium in barium dichloride dihydrate formally is in the oxidation state 2.

Barium dichloride dihydrate

  • Formula as often written: BaCl2.2H2O
  • Hill system formula: Ba1Cl2H4O2
  • CAS registry number: [10326-27-9]
  • Formula weight: 244.263
  • Class: chloride

Synonyms

  • barium dichloride dihydrate
  • barium(II) chloride 2-water
  • barium chloride 2-water

Physical properties

  • Colour: white
  • Appearance: crystalline solid
  • Melting point: 120°C (dehydrates)
  • Boiling point:
  • Density: 3097 kg m-3

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Element analysis

Element percentages for the elements in barium dichloride dihydrate
Element %
Ba 56.22
Cl 29.03
H 1.65
O 13.10

Synthesis

Barium chloride dihydrate is made by the neutralization of barium hydroxide with HCl in water. The product crystallizes as the dihydrate BaCl2.2H2O. If this heated, dehydration to anhydrous BaCl2 occurs.

Ba(OH)2 + 2HCl(aq) → BaCl2(aq) + 2H2O

Isotope pattern

What follows is the calculated isotope pattern for the BaCl2.2H2O unit with the most intense ion set to 100%.

Formula: Ba1Cl2H4O2

mass  %
236   0.1 
237 0.0
238 0.2
239 0.0
240 3.2 __
241 8.6 ____
242 12.2 ______
243 20.1 __________
244 100.0 __________________________________________________
245 10.4 _____
246 61.0 ______________________________
247 1.6 _
248 9.8 _____
249 0.0
250 0.0

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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barium atomic number