Gadolinium(III) selenate

Gadolinium(III) selenate is an inorganic compound with the chemical formula Gd2(SeO4)3. It exists as the anhydrate and octahydrate. The octahydrate transforms into the anhydrate when heated to 130 °C.

Preparation
Gadolinium(III) selenate can be obtained by crystallizing from the reaction of gadolinium oxide and selenic acid solution:


 * Gd2O3 + 3 H2SeO4 -> Gd2(SeO4)3 + 3 H2O