Bromine is not found in nature as a free element, but it is found in bromide compounds. Some of these brines are located in the United States in wells in both Michigan and Arkansas. Bromine has been used in the preparation of certain dyes, fumigants, flameproofing agents, water purification compounds and sanitizers.
Ethylene bromide is a constituent of antiknock fluid used for leaded gasoline.
Because of environmental reasons, lead in gasoline has been drastically reduced causing a decrease in future production of bromine. In addition, bromides are used in the production of photographic film. Bayer Corporation is a research-based company with major businesses in health care and life sciences, and chemicals.