Code | CeO-3N | CeO-3.5N | CeO-4N |
TREO | 99% Min. | 99% Min. | 99% Min. |
CeO2/TREO | 99.9% Min. | 99.95% Min. | 99.9% Min. |
La2O3/TREO | 0.08% Max. | 0.04% Max. | 0.004% Max. |
Pr6O11/TREO | 0.01% Max. | 0.01% Max. | 0.003% Max. |
Nd2O3/TREO | 0.005% Max. | 0.005% Max. | 0.001% Max. |
Sm2O3/TREO | 0.004% Max. | 0.005% Max. | 0.002% Max. |
Y2O3/TREO | 0.0001% Max. | 0.001% Max. | 0.001% Max. |
CaO | 0.01% Max. | 0.01% Max. | 0.003% Max. |
Fe2O3 | 0.005% Max. | 0.005% Max. | 0.002% Max. |
SiO2 | 0.01% Max. | 0.02% Max. | 0.003% Max. |
Cl | 0.06% Max. | 0.06% Max. | 0.04% Max. |
SO42- | 0. 1% Max. | 0.05% Max. | 0.05% Max. |