| Names | |
|---|---|
| Other names
Californium dioxide
| |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
| ECHA InfoCard | 100.031.448 |
| EC Number |
|
| |
| |
| Properties | |
| CfO2 | |
| Molar mass | 283 g·mol−1 |
| Appearance | black-brown solid |
| Density | g/cm3 |
| insoluble | |
| 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 [77 °F], 100 kPa).
| |
Californium(IV) oxide is a binary inorganic compound of californium and oxygen with the formula CfO
2.[1]
Synthesis[edit]
Californium dioxide is produced by oxidizing californium with molecular and atomic oxygen at high pressure.[2]
Physical properties[edit]
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.[3]
References[edit]
- ^ "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.