
Formula: Er2O3
Features:Pink powder.
Uses: Optical glass,ceramic materials,laser crystal,fibre-optical.
| Product Name | Erbium oxide_2N5 | Erbium oxide_3N | Erbium oxide_4N | ||
| Formula | Er2O3 | Er2O3 | Er2O3 | ||
| purity | 99.50% | 99.90% | 99.99% | ||
| Test items | Unit | rated value | rated value | rated value | |
| TREO | % | ≥99 | ≥99 | ≥99 | |
| Loss on ignition | % | ≤1 | ≤1 | ≤1 | |
| Rare earth impurity contents | La2O3 | μg/g | 5000 | ≤100 | ≤100 |
| CeO2 | μg/g | ≤100 | ≤100 | ||
| Pr6O11 | μg/g | ≤100 | ≤100 | ||
| Nd2O3 | μg/g | ≤100 | ≤100 | ||
| Sm2O3 | μg/g | ≤200 | ≤200 | ||
| Eu2O3 | μg/g | ≤100 | ≤100 | ||
| Gd2O3 | μg/g | ≤100 | 5 | ||
| Tb4O7 | μg/g | ≤100 | 5 | ||
| Dy2O3 | μg/g | ≤500 | 10 | ||
| Ho2O3 | μg/g | ≤300 | 30 | ||
| Tm2O3 | μg/g | ≤300 | 20 | ||
| Yb2O3 | μg/g | ≤100 | 10 | ||
| Lu2O3 | μg/g | ≤100 | 10 | ||
| Y2O3 | μg/g | ≤200 | 10 | ||
| non-rare-earth impurity contents | Fe2O3 | μg/g | 50 | ≤50 | 10 |
| SiO2 | μg/g | 500 | ≤50 | 30 | |
| CaO | μg/g | 500 | ≤100 | 10 | |
| Cl- | μg/g | ≤300 | 300 | ||
| PbO | μg/g | ≤20 | 10 | ||