The anhydrous salt crystallizes above 50.7 °C.[7] Dihydrate salts (NaBr•2H2O) begins to anhydrous at 50.7 °C in water solution.It is produced by treating sodium hydroxide with hydrogen bromide.
Sodium bromide can be used as a source of the chemical element bromine. This can be accomplished by treating an aqueous solution of NaBr with chlorine gas: