Sodium bromate is a colorless solid. It is a strong oxidizing agent.
Sodium bromate is made by reacting sodium hydroxide with bromic acid. It can also be made by electrolysis of a sodium bromide solution. It may be made by dissolving bromine in hot sodium hydroxide solution. This also makes sodium bromide.
It is used to dye hair. It is also used to dye other things. It can be used to dissolve gold.