Barium dichloride dihydrate

Barium compounds: barium dichloride dihydrate

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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