Dysprosium(III) bromide is an

inorganic compound In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...

bromine Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest element in group 17 of the periodic table (halogens) and is a volatile red-brown liquid at room temperature that evaporates readily to form a simila ...

and

dysprosium Dysprosium is the chemical element with the symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it ...

, with the chemical formula of DyBr₃.

Preparation

Dysprosium(III) bromide can be obtained by reacting dysprosium with bromine:WebElements
Chemical reactions of Dysprosium
/ref> :2Dy + 3Br₂ → 2DyBr₃ Dysprosium bromide hexahydrate can be obtained by

crystallization Crystallization is the process by which solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some ways by which crystals form are precipitating from a solution, freezing, or more rarely deposi ...

from its

solution Solution may refer to: * Solution (chemistry), a mixture where one substance is dissolved in another * Solution (equation), in mathematics ** Numerical solution, in numerical analysis, approximate solutions within specified error bounds * Soluti ...

, which can be heated with

ammonium bromide Ammonium bromide, NH4Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. On exposure to air it gradually assumes a yellow c ...

in vacuum to obtain the

anhydrous A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water; therefore, it is important that water-free reagents and techniques are used. In practice, however, it is very difficult to achie ...

form. Dysprosium(III) oxide and aluminium bromide (in the form of Al₂Br₆ at a high temperature react a DyAl₃Br₁₂, which decomposes to dysprosium(III) bromide at a lower temperature:杨冬梅, 于锦, 蒋军辉,等. 化学气相传输法制备无水溴化镝. 石油化工高等学校学报, 2003, 16(4). doi: 10.3969/j.issn.1006-396X.2003.04.004. : Dy₂O₃ + Al₂Br₆ → Al₂O₃ + 2 DyBr₃

Properties

Dysprosium(III) bromide is a white-gray

hygroscopic Hygroscopy is the phenomenon of attracting and holding water molecules via either absorption or adsorption from the surrounding environment, which is usually at normal or room temperature. If water molecules become suspended among the substance ...

solid that is soluble in

water Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a ...

. It has a trigonal

crystal structure In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystal, crystalline material. Ordered structures occur from the intrinsic nature of the constituent particles to form symmetric pat ...

of the

bismuth(III) iodide Bismuth(III) iodide is the inorganic compound with the formula Bi I3. This gray-black salt is the product of the reaction of bismuth and iodine, which once was of interest in qualitative inorganic analysis. Bismuth(III) iodide adopts a distinc ...

type with space group ''R''3 (No. 148).

References

{{Lanthanide halides Dysprosium compounds Bromides Lanthanide halides