 Compounds with the prefix perfluoro- are hydrocarbons, including those with heteroatoms, wherein all C-H bonds have been replaced by C-F bonds.Fluorocarbons can be perfluoroalkanes, fluoroalkenes and fluoroalkynes and perfluoroaromatic compounds.Fluorocarbons and their derivatives (perfluorinated compounds) are used as fluoropolymers, refrigerants, solvents, and anesthetics.