WebElements Periodic Table of the Elements | Copper

Copper compounds: dicopper sulphide

The copper in dicopper sulphide formally is in the oxidation state 1.

Dicopper sulphide

Formula as often written: Cu₂S
Hill system formula: Cu₂S₁
CAS registry number: [22205-45-4]
Formula weight: 159.158
Class: sulphide

Synonyms

dicopper sulphide
copper(I) sulphide
copper sulfide
copper sulphide
copper(I) sulfide
cuprous sulfide
cuprous sulphide
dicopper sulfide

Physical properties

Colour: black or blue-black or blue
Appearance: crystalline solid
Melting point: 1127°C
Boiling point:
Density: 5600 kg m^-3

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Element analysis

Element percentages for the elements in dicopper sulphide
Element	%
Cu	79.85
S	20.15

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the Cu₂S unit with the most intense ion set to 100%.

Formula: Cu₂S₁

mass  %
158 100.0 __________________________________________________
159   0.8 
160  93.6 _______________________________________________
161   0.7 
162  23.8 ____________
163   0.2 
164   0.9 
165   0.0 
166   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.