Polonium (IV) bromide

Crystal structure
No drawing available
Crystal system	cubic
Space group	Fm 3 m (No. 225)
Lattice parameters	a = 5.6  Å
General
Surname	Polonium (IV) bromide
other names	Polonium tetrabromide
Ratio formula	PoBr 4
Brief description	light red solid
External identifiers / databases
CAS number 60996-98-7 PubChem 22753593 Wikidata Q4096887
properties
Molar mass	528.598 g mol −1
Physical state	firmly
solubility	soluble in ethanol easily soluble in bromine
Hazard and safety information
Radioactive
GHS hazard labeling no classification available
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 .

${\displaystyle {\ce {PoO2 + 4 HBr -> PoBr4 + 2 H2O}}}$

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

1. ↑ ^{a b} P. E. Figgins: The Radiochemistry of Polonium . National Academies, 1961, pp. 13 .
2. ↑ ^{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 .
3. ↑ 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.
4. ^ HJ Emeléus, AG Sharpe: Advances in Inorganic Chemistry and Radiochemistry . tape 4 . Academic Press, 1962, ISBN 0-08-057853-5 , pp. 216 .