Calcium: calcium sulphide
calcium sulphide is known by the following synonyms:
- calcium sulphide
- calcium(II) sulphide
- calcium sulfide
- calcium(II) sulfide
The oxidation number of calcium in calcium sulphide is 2.
- Formula: CaS
- Hill system formula: Ca1S1
- CAS registry number: [20548-54-3]
- Formula weight: 72.144
- Class: sulphide
- Colour: white or very pale yellow
- Appearance: crystalline solid
- Melting point: 2400°C; 2525°C
- Boiling point:
- Density: 2600 kg m-3
Calcium sulfide can be made through the reaction of calcium metal with elemental sulfur.
8Ca(s) + S8(s) → 8CaS(s)
Solid state structure
- Geometry of calcium: 6 coordinate: octahedral
- Prototypical structure: NaCl (rock salt)
Isotope pattern for CaS
THe chart below shows the calculated isotope pattern for the formula CaS 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.