WebElements Periodic Table of the Elements | Cobalt

Cobalt compounds: hexaaquocobalt dichloride

The cobalt in hexaaquocobalt dichloride formally is in the oxidation state 2.

Hexaaquocobalt dichloride

Formula as often written: CoCl₂.6H₂O
Hill system formula: Cl₂Co₁H₁₂O₆
CAS registry number: [7791-13-1]
Formula weight: 237.93
Class: complex

Synonyms

hexaaquocobalt dichloride
cobalt(II) chloride 6-water
cobalt chloride 6-water
cobalt dichloride 6-water

Physical properties

Colour: pink or red
Appearance: crystalline solid
Melting point: 86°C (dehydrates)
Boiling point:
Density: 1924 kg m^-3

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Element analysis

Element percentages for the elements in hexaaquocobalt dichloride
Element	%
Cl	29.80
Co	24.77
H	5.08
O	40.35

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the CoCl₂.6H₂O unit with the most intense ion set to 100%.

Formula: Co₁Cl₂H₁₂O₆

mass  %
237 100.0 __________________________________________________
238   0.4 
239  65.2 _________________________________
240   0.2 
241  11.0 ______
242   0.0 
243   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.