Californium (III) oxifluoride
Crystal structure | |||||||
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__ Cf 4+ __ O 2− / F - | |||||||
Crystal system | |||||||
Lattice parameters |
a = 556 pm |
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Coordination numbers |
Cf [8], O / F [4] |
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General | |||||||
Surname | Californium (III) oxifluoride | ||||||
other names |
Californium (III) fluoride oxide ( IUPAC ) |
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Ratio formula | CfOF | ||||||
External identifiers / databases | |||||||
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properties | |||||||
Molar mass | 286 g mol −1 | ||||||
Physical state |
firmly |
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Hazard and safety information | |||||||
Radioactive |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Californium (III) oxifluoride (CfOF) was prepared by hydrolysis of californium (III) fluoride (CfF 3 ) at high temperatures. Like californium (IV) oxide (CfO 2 ), it crystallizes in the cubic crystal system in the fluorite structure , with the oxygen and fluorine atoms being found in a random distribution on the anion positions. The lattice parameter is 556.1 ± 0.4 pm.
safety instructions
Classifications according to the CLP regulation are not available because they only include chemical hazard and play a completely subordinate role compared to the hazards based on radioactivity . The latter also only applies if the amount of substance involved is relevant.
Individual evidence
- ↑ The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.
- ^ JR Peterson, John H. Burns: Preparation and Crystal Structure of Californium Oxyfluoride, CfOF , in: J. Inorg. Nucl. Chem. , 1968 , 30 (11), pp. 2955-2958 ( doi: 10.1016 / 0022-1902 (68) 80155-1 ).
literature
- Richard G. Haire: Californium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (Eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 1499-1576 ( doi: 10.1007 / 1-4020-3598-5_11 ).