Gadolinium(III) fluoride
Gadolinium fluoride is an inorganic compound with a chemical formula GdF3.
Preparation
Gadolinium fluoride can be prepared by heating gadolinium oxide and ammonium bifluoride. The reaction involves two steps:Alternatively, reacting gadolinium chloride with hydrofluoric acid and adding hot water produces GdF3·xH2O. Anhydrous gadolinium fluoride can then be produced by heating the hydrate with ammonium bifluoride; without the bifluoride, GdOF is formed instead.