| Product Name | Thulium Nitrate | |||
| Tm2O3 /TREO (% min.) | 99.9999 | 99.999 | 99.99 | 99.9 |
| TREO (% min.) | 45 | 45 | 45 | 45 |
| Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. |
| Tb4O7/TREO | 0.1 | 1 | 10 | 0.005 |
| Dy2O3/TREO | 0.1 | 1 | 10 | 0.005 |
| Ho2O3/TREO | 0.1 | 1 | 10 | 0.005 |
| Er2O3/TREO | 0.5 | 5 | 25 | 0.05 |
| Yb2O3/TREO | 0.5 | 5 | 25 | 0.01 |
| Lu2O3/TREO | 0.5 | 1 | 20 | 0.005 |
| Y2O3/TREO | 0.1 | 1 | 10 | 0.005 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | % max. |
| Fe2O3 | 1 | 3 | 10 | 0.001 |
| SiO2 | 5 | 10 | 50 | 0.01 |
| CaO | 5 | 10 | 100 | 0.01 |
| CuO | 1 | 1 | 5 | 0.03 |
| NiO | 1 | 2 | 5 | 0.001 |
| ZnO | 1 | 3 | 10 | 0.001 |
| PbO | 1 | 2 | 5 | 0.001 |