| Product Code | La2O3-01 | La2O3-02 | La2O3-03 | La2O3-04 | La2O3-05 | La2O3-06 |
| Grade | 99.9999% | 99.999% | 99.995% | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | ||||||
| La2O3/TREO (% min.) | 99.9999 | 99.999 | 99.995 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 99.5 | 99 | 99 | 98 | 98 | 98 |
| Loss on ignition (% max.) | 1 | 1 | 1 | 2 | 2 | 2 |
| Rare Earth Impurities | ppm max. | ppm max. | ppm max. | ppm max. | % max. | % max. |
| CeO2 Pr6O11 Nd2O3 Sm2O3 Eu2O3 Gd2O3 Y2O3 | 0.5 0.5 0.5 0.2 0.2 0.2 0.5 | 3 3 2 2 2 2 5 | 5 5 5 5 5 5 5 | 50 50 50 10 10 10 10 | 0.05 0.02 0.02 0.01 0.001 0.001 0.01 | 0.5 0.1 0.1 0.1 0.1 0.1 0.1 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO CoO NiO CuO MnO2 Cr2O3 CdO PbO | 1 10 10 2 2 2 2 2 5 5 | 2 50 50 2 2 2 2 2 5 5 | 10 50 50 2 2 2 2 3 5 10 | 50 100 100 5 5 3 5 3 5 50 | 0.01 0.05 0.2 | 0.02 0.1 0.5 |