Indium(III) fluoride
（重定向自Indium trifluoride）
![](/Images/godic/202501/20/Aluminium-trifluoride-3D-polyhedra3115.png")
![](/Images/godic/202501/20/FeF3structure3115.jpg")
Indium(III) fluoride or indium trifluoride is the chemical compound composed of indium and fluorine with the formula InF3. It has a rhombohedral crystal structure identical to that of rhodium(III) fluoride . It is formed by the reaction of indium(III) oxide with hydrogen fluoride or hydrofluoric acid.