Sulfur dibromide is the chemical compound with the formula . It is a very toxic and vile smelling gas. Sulfur dibromide, like sulfur chlorides and disulfur dibromide, has a characteristic smell, like that of burning rubber.
Sulfur dibromide readily decomposes into and elemental bromine. In analogy to sulfur dichloride, it hydrolyzes in water to give hydrogen bromide, sulfur dioxide and elemental sulfur.
can be prepared by reacting with HBr. It can also be made by reacting sulfur with Br2, but due to its rapid decomposition it cannot be isolated at standard conditions. Instead, the more stable is obtained.
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