Bromine is named from the Greek bromos, stench and was discovered in 1826, but not produced in quantity until 1860. A member of the halogen group of elements, it is obtained from natural brines in wells in Michigan and Arkansas. Bromine is the only liquid, nonmetallic element. It is a heavy, reddish-brown liquid, volatilizing readily at room temperature to a red vapor with a strong disagreeable odor, resembling chlorine, and having a very irritating effect on the eyes and throat. It presents a serious health hazard; when spilled on the skin it produces painful sores. Bromine is used in making fumigants, flameproofing agents, water purification compounds, dyes, medicinals, sanitizers and inorganic bromides for photography. Organic bromides are also important.