Caesium superoxide
- Formula: CsO2
- Hill system formula: Cs1O2
- CAS registry number: [12018-61-0]
- Formula weight: 164.904
- Class: oxide
- Colour: yellow to orange
- Appearance: crystalline solid
- Melting point: 600°C; 432°C
- Boiling point:
- Density: 3770 kg m-3
The following are some synonyms of caesium superoxide:
- caesium superoxide
- caesium(I) superoxide
- cesium superoxide
- cesium(I) superoxide
The oxidation number of caesium in caesium superoxide is 1.
Synthesis
If caesium is burned in air, the result is mainly formation of orange caesium superoxide, CsO2.
Cs(s) + O2(g) → CsO2(s)
Solid state structure
- Geometry of caesium:
- Prototypical structure:
Element analysis
The table shows element percentages for CsO2 (caesium superoxide).
| Element | % |
|---|---|
| Cs | 80.60 |
| O | 19.40 |
Isotope pattern for CsO2
The chart below shows the calculated isotope pattern for the formula CsO2 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.