Caesium perchlorate
From Wikipedia, the free encyclopedia
| Caesium perchlorate | |
|---|---|
| Identifiers | |
| CAS number | [] |
| PubChem | |
| Properties | |
| Molecular formula | ClCsO4 |
| Molar mass | 232.33 g mol-1 |
| Density | 3.327 g ml-1[1] |
| Melting point |
250 °C[1] |
| Solubility in water | 0.8 g / 100 at 0 °C, 2.0 at 25 °C, 30.0 at 100 °C[1] |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Caesium perchlorate, CsClO4 (also known as cesium perchlorate), is a perchlorate of caesium. It forms white hygroscopic crystals in the solid state.
CsClO4 is the least soluble of the alkali metal perchlorates (followed by Rb, K, Li, and Na), a property which may be used for separatory purposes and even for gravimetric analysis. [2] This low solubility is attributed to the formation of aggregates between the metal atom and the perchlorate anion.
When heated, CsClO4 decomposes to CsCl at 575 °C. Like all perchlorates, it is a strong oxidant and may react violently with reducing agents and organic materials, especially at elevated temperatures.
Caesium perchlorate helped in discovering francium and identifying it as an alkali metal because francium-223 co-precipitated with cesium perchlorate.[3][4]
[edit] References
- ^ a b c Dale L. Perry, Sidney L. Phillips. Handbook of Inorganic Compounds. CRC Press, 1995
- ^ A. Earnshaw, Norman Greenwood. Chemistry of the Elements, Second Edition. Butterworth-Heinemann, 1997
- ^ Martin Ambrose Paul, Edward Jasper King, Larkin Hundley Farinholt. General Chemistry. Harcourt, Brace & World, 1967. D. E. Barnes. Newnes Concise Encyclopaedia of Nuclear Energy. G. Newnes, 1962.
- ^ E. K. Hyde. Radiochemical Methods for the Isolation of Element 87 (Francium). J. Am. Chem. Soc. 1952, 74, 4181-4184.[1].
