Dysprosium (II) bromide

Crystal structure
__ Dy 2+      __ Br -
General
Surname	Dysprosium (II) bromide
other names	Dysprosium dibromide
Ratio formula	DyBr 2
Brief description	black solid
External identifiers / databases
CAS number 83229-05-4 Wikidata Q15628227
properties
Molar mass	322.31 g mol −1
Physical state	firmly
safety instructions
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 .

Dysprosium (II) bromide is an inorganic chemical compound of dysprosium from the group of bromides .

Extraction and presentation

Dysprosium (II) bromide can be obtained by reducing dysprosium (III) bromide with dysprosium in a vacuum at 800 to 900 ° C.

${\displaystyle \mathrm {Dy+2\ DyBr_{3}\longrightarrow 3\ DyBr_{2}} }$

properties

Dysprosium (II) bromide is a black solid. The connection is extremely hygroscopic and can only be stored and handled under carefully dried protective gas or in a high vacuum. In air, it changes into hydrates with moisture absorption , but these are unstable and more or less quickly transform into oxide bromides with evolution of hydrogen . These processes take place much faster with water. The compound has a crystal structure of the strontium (II) iodide type.

Individual evidence

1. ↑ ^{a b c d} Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1081.
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.