Polonium (IV) bromide
Crystal structure | ||||||||||
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No drawing available | ||||||||||
Crystal system | ||||||||||
Space group |
Fm 3 m (No. 225) |
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Lattice parameters |
a = 5.6 Å |
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General | ||||||||||
Surname | Polonium (IV) bromide | |||||||||
other names |
Polonium tetrabromide |
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Ratio formula | PoBr 4 | |||||||||
Brief description |
light red solid |
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properties | ||||||||||
Molar mass | 528.598 g mol −1 | |||||||||
Physical state |
firmly |
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solubility | ||||||||||
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 . |
Polonium (IV) bromide , PoBr 4 , is the tetravalent bromide compound of the chalcogen polonium .
Extraction
Polonium (IV) bromide is obtained from the reaction of the two elements between 200 ° C and 250 ° C.
Analogously to polonium (IV) iodide , the compound can be prepared by heating polonium (IV) oxide in hydrogen bromide .
properties
Polonium tetrabromide is a light red solid with hygroscopic properties. The crystal structure of polonium (IV) bromide is cubic . It has the space group Fm 3 m (space group no. 225) with the lattice parameter a = 5.6 Å .
Individual evidence
- ↑ a b P. E. Figgins: The Radiochemistry of Polonium . National Academies, 1961, pp. 13 .
- ↑ a b c d M. Schmidt, W. Siebert, KW Bagnall: The Chemistry of Sulfur, Selenium, Tellurium and Polonium: Pergamon Texts in Inorganic Chemistry . tape 15 . Elsevier, 2013, ISBN 1-4831-5865-9 , pp. 960-961 .
- ↑ 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.
- ^ HJ Emeléus, AG Sharpe: Advances in Inorganic Chemistry and Radiochemistry . tape 4 . Academic Press, 1962, ISBN 0-08-057853-5 , pp. 216 .