What is cesium bromide?

Cesium bromide is an ionic compound composed of cesium and bromide. Its chemical formula is CsBr ,and it has the appearance of a white solid matter with a cubic structure.

Cesium bromide is synthesized for use in producing spectrophotometers in the optics industry. Synthesizing cesium bromide requires starting a reaction between cesium carbonate and hydrobromic acid, which produces a salt. Purifying the leftover salt from the reaction leaves an opaque white substance which is harvested as cesium bromide. Rarely, the compound is also synthesized by burning bromine and cesium with a halogen gas, though this method is much more expensive.