Mercury(II) bromide
（重定向自Mercuric bromide）
![](/Images/godic/202501/26/HgBr2-xtal-1990-CM-3D-balls4244.png")
Mercury(II) bromide or mercuric bromide is the chemical compound composed of mercury and bromine with the formula HgBr2. This white crystalline solid is a laboratory reagent. Like mercury(II) chloride, it is extremely toxic.