DBDMH in water mainly forms hypobromic acid, which releases bromine in the form of hypobromic acid. The reaction of dibromohydantoin releasing bromine is very fast, and it can continuously release Br - ions in water, which has a bactericidal effect. However, other halogenated hydantoins, such as dichlorohydantoin or bromochlorohydantoin, release chlorine slowly, and the time to form a bactericidal peak in water is relatively delayed. Therefore, dibromohydantoin has higher efficiency than other halogenated hydantoins under conditions that require relatively rapid sterilization.
