| Code |
CC-3.5N |
CC-4N |
| Total amount of rare earth oxides % |
≥50 |
≥50 |
| Cerium purity and relative rare earth impurities |
| CeO2/TREO % |
≥99.95 |
≥99.99 |
| La2O3/TREO % |
≤0.2 |
≤0.004 |
| Pr6O11/TREO % |
≤0.01 |
≤0.002 |
| Nd2O3/TREO % |
≤0.01 |
≤0.001 |
| Sm2O3/TREO % |
≤0.005 |
≤0.001 |
| Y2O3/TREO % |
≤0.005 |
≤0.001 |
| Non rare earth impurity |
| Ca% |
≤0.01 |
≤0.005 |
| Fe% |
≤0.005 |
≤0.003 |
| Na% |
≤0.01 |
≤0.005 |
| K% |
≤0.003 |
≤0.001 |
| Pb% |
≤0.003 |
≤0.001 |
| Al% |
≤0.005 |
≤0.005 |
| Si% |
≤0.01 |
≤0.01 |
| Cl–% |
≤0.03 |
≤0.03 |
| SO42- % |
≤0.03 |
≤0.03 |
| NTU |
≤20 |
≤20 |
| Oil content |
After nitric acid dissolution, there is no obvious oil content on the solution surface |
Rare earth materials
Rare earth materials
Rare earth materials
Rare earth materials