Copper compounds: tricopper diphosphate trihydrate

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The copper in tricopper diphosphate trihydrate formally is in the oxidation state 2.

Tricopper diphosphate trihydrate

  • Formula as often written: Cu3(PO4)2.3H2O
  • Hill system formula: Cu3H6O11P2
  • CAS registry number: [10031-48-8]
  • Formula weight: 434.627
  • Class: complex


  • tricopper diphosphate trihydrate
  • copper(II) phosphate 3-water
  • copper phosphate 3-water
  • cupric phosphate 3-water

Physical properties

  • Colour: blue green or blue
  • Appearance: crystalline solid
  • Melting point: 150°C (dehydrates)
  • Boiling point:
  • Density:


Coming soon...

Element analysis

Element percentages for the elements in tricopper diphosphate trihydrate
Element %
Cu 43.86
H 1.39
O 40.49
P 14.25


Not available

Isotope pattern

What follows is the calculated isotope pattern for the Cu3(PO4)2.3H2O unit with the most intense ion set to 100%.

Formula: Cu3P2O11H6

mass  %
433  73.6 _____________________________________
434 0.4
435 100.0 __________________________________________________
436 0.5
437 46.0 _______________________
438 0.2
439 7.5 ____
440 0.0
441 0.2


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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