Europium(III) nitrate is an inorganic compound with the formula . The hexahydrate is a common salt. It forms colorless hygroscopic crystals.
The salt is usually obtained by dissolving europium(III) oxide (Eu<sub>2</sub>O<sub>3</sub>) in nitric acid produces europium(III) nitrate.
Like all trinitrates of the lanthanides, dilute (<0.01 M) solutions of consists of the aquo complex where x = 8 or 9. At higher concentrations, the binding of nitrate to Eu is observed.
Europium(III) nitrate reacts with anions and other Lewis bases to form complexes. For example, with 1,3,5-trimesic acid, europium metal-organic framework, a coordination polymer, under hydrothermal conditions.