Hydrogen bromide, anhydrous appears as a colorless gas with a pungent irritating odor. Corrosive. Heavier than air. Prolonged exposure to fire or intense heat may result in the violent rupture and rocketing of the container. Long-term exposure to low concentrations or short-term exposure to high concentrations can result in adverse health effects from inhalation. Used to make other chemicals and as a catalyst in the manufacture of chemicals. Rate of onset: Immediate Persistence: Minutes to hours Odor threshold: 2 ppm Source/use/other hazard: Chemical manufacturing industry; very corrosive.

Hydrobromic acid is mainly used in the production of inorganic bromides, for the cleavage of alkoxides and phenoxides, for the substitution of hydroxyl groups in substitution reactions, and for addition to alkenes.It can also catalyze mineral extraction and certain alkylation reactions.