- Formula: Ga2Cl6
- Hill system formula: Cl6Ga2
- CAS registry number: [13450-90-3]
- Formula weight: 352.162
- Class: chloride
- Colour: white
- Appearance: crystalline solid
- Melting point: 78°C
- Boiling point: 201°C
- Density: 2470 kg m-3
The following are some synonyms of digallium hexachloride:
- digallium hexachloride
- gallium(III) chloride
- gallium chloride
- gallium trichloride
The oxidation number of gallium in digallium hexachloride is 3.
2Ga + 6HCl (200°C) → 2GaCl3 + 3H2
Gallium(III) chloride can be made by direct reaction between the elements but hot gallium reacts with hydrogen chloride gas to form gallium(III) chloride in a reaction that does not require the use of chlorine gas. The product sublimes away and the yield is nearly quantitative based upon gallium. The product is a hygroscopic white crystalline solid whose m.p. is 76°C. It sublimes easily under reduced pressures below the melting point.
Solid state structure
- Geometry of gallium: 4 coordinate: tetrahedral
- Prototypical structure:
The table shows element percentages for Ga2Cl6 (digallium hexachloride).
Isotope pattern for Ga2Cl6
The chart below shows the calculated isotope pattern for the formula Ga2Cl6 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.