Used as a sedative and anticonvulsant in medicine, particularly in the early 20th century to treat nervous disorders and epilepsy.

Employed in organic synthesis as a source of bromide ions or as a catalyst in certain reactions.

Utilized in the preparation of Grignard reagents when reacted with organic halides, aiding in carbon-carbon bond formation.

Applied in some types of batteries and electrochemical studies due to its ionic conductivity in solution.

Used in laboratories as a drying agent for polar solvents because of its hygroscopic nature.