| Eu(SO4)2·4H2O | Eu(SO4)2·4H2O | Eu(SO4)2·4H2O | |
| Purity | 99.99% | 99.995% | 99.999% |
| TREO | 43.00 | 43.00 | 43.00 |
| Eu2O3/TREO | 99.99 | 99.995 | 99.999 |
| Fe2O3 | 0.005 | 0.001 | 0.0005 |
| SiO2 | 0.005 | 0.002 | 0.001 |
| CaO | 0.005 | 0.001 | 0.001 |
| Cl- | 0.005 | 0.002 | 0.002 |
| Na2O | 0.005 | 0.002 | 0.001 |
| PbO | 0.002 | 0.001 | 0.001 |
| Solubility in water | Clear | Clear | Clear |