Berkelium (III) iodide
Crystal structure | |||||||
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__ Bk 3+ __ I - | |||||||
Crystal system | |||||||
Space group |
R 3 (No. 148) |
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Lattice parameters |
a = 758.4 pm |
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General | |||||||
Surname | Berkelium (III) iodide | ||||||
other names |
Berkelium triiodide |
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Ratio formula | BkI 3 | ||||||
Brief description |
yellow crystals |
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External identifiers / databases | |||||||
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properties | |||||||
Molar mass | 627.78 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 . |
Berkelium (III) iodide is an iodide of the artificial element and actinoid Berkelium with the empirical formula BkI 3 . In this salt , Berkelium occurs in the +3 oxidation state.
properties
Berkelium (III) iodide is a yellow solid and crystallizes in the trigonal crystal system in the space group R 3 (No. 148) with the lattice parameters a = 758.4 pm and c = 2087 pm with six formula units per unit cell . Its crystal structure is isotype with bismuth (III) iodide .
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
- ^ AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1969.
- ↑ 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, DE Hobart: The Chemistry of Berkelium , in: Harry Julius Emeleus (Ed.): Advances in Inorganic Chemistry and Radiochemistry , Volume 28, Academic Press, 1984, ISBN 0-12023628-1 , pp. 29-64 ( doi : 10.1016 / S0898-8838 (08) 60204-4 ), here: p. 48 ( limited preview in the Google book search).
- ↑ RL Fellows, JP Young, RG Haire, in: Physical-Chemical Studies of Transuranium Elements (Progress Report April 1976-March 1977) (ed. JR Peterson), US Energy Research and Development Administration Document ORO-4447-048, University of Tennessee, Knoxville, pp. 5-15.
literature
- David E. Hobart, Joseph R. Peterson: Berkelium , 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. 1444-1498 ( doi : 10.1007 / 1-4020-3598-5_10 ).