Trifluorides are compounds in which one atom or ion has three fluorine atoms or ions associated. Many metals form trifluorides, such as iron, the rare-earth elements, and the metals in the aluminium and scandium columns of the periodic table. Most metal trifluorides are poorly soluble in water except Ferric fluoride and Indium(III) fluoride, but several are soluble in other solvents. List of trifluorides Actinium trifluoride, AcF3 Aluminium trifluoride Americium trifluoride, AmF3 Antimony trifluoride, SbF3, sometimes called Swart's reagent Arsenic trifluoride, AsF3 Bismuth trifluoride, BiF3 Boron trifluoride, BF3, a pungent colourless toxic gas Bromotrifluoromethane, (carbon monobromide trifluoride) Bromine trifluoride, BrF3 Carbon trifluoride, C2F6, Hexafluoroethane Cerium trifluoride, CeF3 Chlorine trifluoride, ClF3 Chromium trifluoride, CrF3 Cobalt trifluoride, CoF3 Curium trifluoride, CmF3 Diethylaminosulfur trifluoride (DAST) is the organosulfur compound with the formula Et2NSF3 Fluoroform, (trifluoromethane) Gallium trifluoride, GaF3 Gold trifluoride, AuF3 Indium trifluoride, InF3 Iodine trifluoride, IF3, a yellow solid which decomposes above −28 °C Iron trifluoride, FeF3 Lanthanum trifluoride, LaF3 Manganese trifluoride, MnF3 Neptunium trifluoride, NpF3 Nitrogen trifluoride, NF3, a colorless, toxic, odourless, nonflammable gas Palladium(II, IV) fluoride Phosphorus trifluoride, PF3, a colorless and odorless gas Plutonium trifluoride, PuF3 Promethium trifluoride, PmF3 Rhodium trifluoride, RhF3 Samarium trifluoride, SmF3 Scandium trifluoride, ScF3 Silver trifluoride, AgF3, an unstable, bright-red, diamagnetic compound Sulfur trifluoride, SF3 Thallium trifluoride, TlF3 Thiazyl trifluoride, NSF3, a stable, colourless gas, and important precursor to other sulfur-nitrogen-fluorine compounds Thiophosphoryl trifluoride PSF3 colourless gas spontaneously burning with a very cool flame Titanium trifluoride, TiF3 Uranium trifluoride, UF3 Vanadium trifluoride, VF3 Vanadium(V) oxytrifluoride Ytterbium trifluoride, YbF3 Yttrium trifluoride, YF3 References Fluorides