Bromine ion can enhance the inhibition process of cerebral cortex, produce sedation, and restore the balance between cortical excitation and inhibition process. Oral absorption is easy, the distribution of chloride ions in the body, excreted through the kidney, sodium chloride can increase its excretion rate. It is used medically as a sedative to treat neurasthenia and epilepsy. The photographic industry uses it as a photographic emulsion. The wood industry is used as a fire retardant. Used in analytical chemistry for the drop analysis of copper. In addition, it is also used for SLATE printing.




