Europium(II) hydroxide


Europium hydroxide is an inorganic compound, with the chemical formula of Eu2. It can exist as the dihydrate Eu2·H2O.

Preparation

The monohydrate of europium hydroxide can be obtained by the reaction of metal europium and 10 mol/L sodium hydroxide solution. There are some sources that use europium(III) chloride as a raw material, and prepare it by reacting the Jones reductor with sodium hydroxide solution.

Properties

Europium hydroxide belongs to the orthorhombic crystal system, a=6.701 ± 0.002, b=6.197 ± 0.002, c=3.652 ± 0.001 A. It thermally decomposes to form europium(II) oxide ; it is readily oxidized to europium(III) hydroxide in air.