The film tells about fluorine, its properties and the use of fluorine in the national economy. Demonstration of chemical experiments illustrating the properties of fluorine. Photoprotret of the French chemist A. Moissant, who first obtained fluorine in 1886. Electronic model of fluorine. A crowd of people under umbrellas in the square during a demonstration. Rolling mill for aluminum smelting. Nuclear power plant control panel. Workers in the refrigerator assembly shop. Aerosol cans with cosmetics on the conveyor belt. Metal and PTFE bearing cages. Bearings at the stand. A man at home cooks in a frying pan with a fluoroplastic coating. An ophthalmologist in the operating room performs an operation using perfluorocarbon. Laboratory equipment for creating oxygen-carrying emulsion - perfteran, which can serve as a substitute for donated blood. Mineral fluorite. Newsreel footage: an atomic explosion, a walrus rookery, the surf, a camel caravan in the desert, crowned cranes in an open-air cage, a round fish at the bottom of a reservoir, balloons in the air.