Zirconium(IV) bromide

Zirconium(IV) bromide is the inorganic compound with the formula ZrBr4.

ZrBr4 is prepared by the action of bromine on zirconium oxide via a carbothermic reaction:[1] Like many related tetrahalides, it is purified by sublimation.

It can also be prepared by treatment of the borohydride complex with hydrogen bromide:[2] Like related tetrabromides of Ti and Hf, ZrBr4 hydrolyzes readily to give the oxybromide, with release of hydrogen bromide.

Some reports suggest that it is isostructural with TiCl4 and TiBr4, featuring tetrahedral metal centers.

[4] ZrCl4 is polymeric in the solid state, featuring octahedral Zr centers.

NFPA 704 four-colored diamond Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas Flammability 0: Will not burn. E.g. water Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus Special hazards (white): no code