| Europium oxide | |
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| Identifiers | |
| CAS number | 1308-96-9 |
| ChemSpider | 3441840 |
| Jmol-3D images | Image 1 |
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| 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 |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 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.
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