| Names | |
|---|---|
| Other names Californium dioxide | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.031.448 
|
| EC Number |
|
InChI
| |
SMILES
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| Properties | |
| Chemical formula | CfO2 |
| Molar mass | 283 g·mol |
| Appearance | black-brown solid |
| Density | g/cm |
| Solubility in water | insoluble |
| Structure | |
| Crystal structure | cubic |
| Related compounds | |
| Related compounds | Berkelium dioxide, dicalifornium trioxide |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Californium(IV) oxide is a binary inorganic compound of californium and oxygen with the formula CfO
2.
Synthesis
Californium dioxide is produced by oxidizing californium with molecular and atomic oxygen at high pressure.
Physical properties
Californium(IV) oxide is a black-brown solid that has a cubic fluorite crystal structure with a lattice parameter, the distance between unit cells in the crystal, of 531.0 ± 0.2 pm. Crystals of californium(III) oxide normally have a body-centered cubic symmetry. They convert to a monoclinic form upon heating to about 1400 °C and melt at 1750 °C.
References
- "WebElements Periodic Table » Californium » californium dioxide". webelements.com. Retrieved 11 April 2023.
- Haire, Richard G. (2006). "Californium". The Chemistry of the Actinide and Transactinide Elements. Springer Netherlands. pp. 1499–1576. doi:10.1007/1-4020-3598-5_11. ISBN 978-1-4020-3598-2. Retrieved 11 April 2023.
- Baybarz, R. D.; Haire, R. G.; Fahey, J. A. (1 February 1972). "On the californium oxide system". Journal of Inorganic and Nuclear Chemistry. 34 (2): 557–565. doi:10.1016/0022-1902(72)80435-4. ISSN 0022-1902. Retrieved 11 April 2023.
| Californium compounds | |||
|---|---|---|---|
| Cf(II) | |||
| Cf(III) |
| ||
| Cf(IV) | |||
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