Cadmium bromide is the inorganic compound with the formula CdBr₂. It is a white hygroscopic solid. It also can be obtained as a mono- and tetrahydrate. It has few applications.

Preparation and structure

Cadmium bromide is prepared by heating cadmium with bromine vapor. The tetrahydrate has been obtained by crystallization of the dibromide from aqueous solution. At 3.04 g/cm³, it is much less dense than the anhydrous material. According to

X-ray crystallography X-ray crystallography is the experimental science of determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to Diffraction, diffract in specific directions. By measuring th ...

, the tetrahydrate is a polymer of CdBr₂(H₂O)₂ with bridging bromide ligands. There are two interstitial water molecules

References

Cadmium compounds Bromides Metal halides Photographic chemicals {{inorganic-compound-stub