Bromine compounds are one of the important elements that marine life needs daily. Now there are many breeding process used ozone system. The ozone system is a process that treats bacteria in cultured water. When using the ozone system, bromide and ozone (O3) react chemically and become toxic sodium bromate (NaBrO). These sodium bromates are fatal to marine life. Therefore, in the process of producing sea salt, the amount of bromide should be adjusted appropriately. Avoid the appearance of sodium bromate in water.