Europium(III) oxide

Europiumsesquioxid

White to hellrosaner odorless solid

Fixed

7.42 g · cm -3

2291 ° C

4118 ° C

Practically insoluble in water

Attention

5000 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Europium (III) -oxide is a chemical compound from the group of oxides of europium.

Production and representation

Europium (III) -oxide can be obtained directly by reaction of europium or europium ( II) oxide with oxygen.

In order to obtain nanocrystals of the material, a synthesis is used by calcination of the corresponding hydroxide or oxalate.

Properties

Europium ( III ) oxide is a hygroscopic white to hellrosaner odorless solid that is practically insoluble in water. It has a monoclinic crystal structure.

Use

In long-wave UV light it glows bright red and is therefore processed primarily on banknotes as a safety color.