| Code | CAN-3.5N | CAN-4N |
| TREO % | ≥30.5 | ≥31.5 |
| Cerium purity and relative rare earth impurities | ||
| CeO2/TREO % | ≥99.95 | ≥99.99 |
| La2O3/TREO % | ≤0.03 | ≤0.004 |
| Pr6O11/TREO % | ≤0.005 | ≤0.002 |
| Nd2O3/TREO % | ≤0.005 | ≤0.001 |
| Sm2O3/TREO % | ≤0.005 | ≤0.001 |
| Y2O3/TREO % | ≤0.005 | ≤0.001 |
| Non rare earth impurity | ||
| Fe % | ≤0.0005 | ≤0.0003 |
| Ca % | ≤0.0005 | ≤0.0003 |
| Cd % | ≤0.0005 | ≤0.0003 |
| Co % | ≤0.0005 | ≤0.0003 |
| Cu % | ≤0.0005 | ≤0.0003 |
| K % | ≤0.0005 | ≤0.0003 |
| Na % | ≤0.0005 | ≤0.0003 |
| Ni % | ≤0.0005 | ≤0.0003 |
| Pb % | ≤0.0005 | ≤0.0003 |
| NTU | ≤1.5 | ≤0.8 |
Cerium Ammonium Nitrate
- Formula:Ce(NO3)4·2NH4NO3
- Nol.wt. 548.72
- CAS:16774-21-3
- Appearance: orange color
- Uses: In LCD production starting polished and engraved the role of corruption.
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