Dirubidium sulphide
- Formula: Rb2S
- Hill system formula: Rb2S1
- CAS registry number: [31083-74-6]
- Formula weight: 203.002
- Class: sulphide
- Colour: white, yellow or red
- Appearance:
- Melting point: 530°C; 425°C (decomposes)
- Boiling point:
- Density: 2910 kg m-3
The following are some synonyms of dirubidium sulphide:
- dirubidium sulphide
- rubidium(I) sulphide
- dirubidium sulfide
- rubidium sulfide
- rubidium sulphide
- rubidium(I) sulfide
The oxidation number of rubidium in dirubidium sulphide is 1.
Synthesis
One way to make rubidium sulphide is to reduce the sulphate with carbon.
Rb2SO4(s) + 2C(s) → Rb2S(s) + 2CO2(g)
Solid state structure
- Geometry of rubidium: 4 coordinate: tetrahedral
- Prototypical structure:
Element analysis
The table shows element percentages for Rb2S (dirubidium sulphide).
| Element | % |
|---|---|
| Rb | 84.20 |
| S | 15.80 |
Isotope pattern for Rb2S
The chart below shows the calculated isotope pattern for the formula Rb2S with the most intense ion set to 100%.
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.