China Bromine As A Disinfectant Factory & Product

In modern industrial recirculating cooling water, pulp processing, and high-pathogen municipal wastewater treatment, disinfection efficiency is severely limited by pH shifts and nitrogenous organic loads. Chlorine, when added to water, forms hypochlorous acid (HOCl). However, when the system operates at a pH above 7.5, HOCl rapidly dissociates into the hypochlorite ion (OCl⁻), which exhibits less than 1/80th of HOCl's germicidal activity. In contrast, bromine disinfection chemistry produces hypobromous acid (HOBr), which maintains a pKa of 8.7. At a pH of 8.0, more than 83% of active bromine remains in its potent, un-dissociated, cell-membrane-permeating HOBr state, compared to less than 28% for equivalent chlorine chemistry.

Furthermore, in environments containing ammonia and nitrogenous organic compounds, chlorine reacts to produce noxious, irritating, and chemically inert chloramines (monochloramine, dichloramine, and nitrogen trichloride). When bromine interacts with ammonia, it produces bromamines. Unlike chloramines, bromamines retain almost identical biocidal, sporocidal, and virucidal efficacy compared to free HOBr, while dissipating rapidly without releasing noxious atmospheric vapors or hazardous organohalide residuals into downstream aquatic systems.