Europium(III) oxide

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Europium oxide
Eu2O3.powder.jpg
Identifiers
CAS number 1308-96-9 YesY
PubChem 159371
ChemSpider 3441840 YesY
Jmol-3D images Image 1
Properties
Molecular formula Eu2O3
Molar mass 351.926 g/mol
Appearance White powder.
Density 7.40 g/cm3
Melting point 2350 °C[1]
Solubility in water Negligible
Structure
Crystal structure Monoclinic, Cubic
Hazards
MSDS External MSDS
Main hazards Non-Toxic
Related compounds
Other anions Europium(III) chloride
Other cations Samarium(III) oxide, Gadolinium(III) oxide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Europium(III) oxide (Eu2O3), is a chemical compound of europium and oxygen. It is widely used as a red or blue phosphor in television sets and fluorescent lamps, and as an activator for yttrium-based phosphors. It is also an agent for the manufacture of fluorescent glass. Europium fluorescence is used in the anti-counterfeiting phosphors in Euro banknotes.[2]

Europium oxide has two common structures: Monoclinic (mS30, SpaceGroup = C2/m, No. 12) and cubic (cI80, SpaceGroup = Ia-3, No. 206). The cubic structure is similar to that of manganese(III) oxide.

It may be formed by ignition of europium metal.

It can react with acids to form the corresponding europium(III) salts.

Gallery[edit]

References[edit]