Bromine belongs to the same family as chlorine; they are both halogens. It is a disinfectant, has good algicidal properties, and is an oxidizer. Bromine is destroyed by sunlight. About half of bromine can be destroyed by sunlight in 60 to 90 minutes. Cynaric
Acid does not protect Bromine from ultraviolet sunlight destruction. Once brominating
products are used, Bromide will remain in the water. Bromine is mainly used in hot tubs, and some indoor pools.
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