Europium 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.
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 Oxide.
It may be formed by ignition of europium metal.
It can react with acids to form the corresponding Europium salts.
| Item | Parameter | Inspection Analysis |
|---|---|---|
| LOI (1000ºC) | (wt%) | 100% |
| TREO | (wt%) | 99.00% |
| Y2O3/TREO | (wt%) | 99.99% |
| D5O | (wt%) | 3.5%+0.5% |
| CeO2 | (wt%) | 0.0005% |
| Nd2O3 | (wt%) | 0.0005% |
| Sm2O3 | (wt%) | 0.0005% |
| Gd2O3 | (wt%) | 0.0005% |
| Dy2O3 | (wt%) | 0.0005% |
| Y2O3/TREO | (wt%) | 0.0005% |
| Fe2O3 | (wt%) | 0.0003% |
| CaO | (wt%) | 0.0008% |
| CuO | (wt%) | 0.001% |
| SiO2 | (wt%) | 0.002% |