Copper chloride

  • Formula: CuCl
  • Hill system formula: Cl1Cu1
  • CAS registry number: [7758-89-6]
  • Formula weight: 98.999
  • Class: chloride
  • Colour: white
  • Appearance: crystalline solid. Turns green in moist air.
  • Melting point: 422°C; 430°C
  • Boiling point: 1490°C
  • Density: 4.14 (25°C relative to water at 4°C)

The following are some synonyms of copper chloride:

  • copper chloride
  • copper(I) chloride
  • cuprous chloride

The oxidation number of copper in copper chloride is 1.


Not available

Solid state structure

  • Geometry of copper:
  • Prototypical structure: ZnS (sphalerite, zinc blende)
Crystal structure of copper chloride.
Crystal structure of copper chloride.

Element analysis

The table shows element percentages for CuCl (copper chloride).

Element %
Cl 35.81
Cu 64.19

Isotope pattern for CuCl

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


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.

Explore periodic propertes from these links