Code | S-2.5N | S-3.5N | S-4N |
Total amount of rare earth oxides % | ≥32 | ≥35 | ≥35 |
Cerium purity and relative rare earth impurities | |||
CeO2/TREO % | ≥99.9 | ≥99.95 | ≥99.99 |
La2O3/TREO % | ≤0.05 | ≤0.030 | ≤0.004 |
Pr6O11/TREO % | ≤0.02 | ≤0.005 | ≤0.002 |
CeO2/TREO % | ≤0.02 | ≤0.005 | ≤0.002 |
Sm2O3/TREO % | ≤0.005 | ≤0.005 | ≤0.001 |
Y2O3/TREO % | ≤0.005 | ≤0.005 | ≤0.001 |
Non rare earth impurity | |||
Fe % | ≤0.005 | ≤0.002 | ≤0.001 |
Ca % | ≤0.02 | ≤0.005 | ≤0.001 |
Cd % | ≤0.0005 | ≤0.0005 | ≤0.0003 |
K % | ≤0.0005 | ≤0.0005 | ≤0.0003 |
Na % | ≤0.0005 | ≤0.0005 | ≤0.0003 |
Ni % | ≤0.0005 | ≤0.0005 | ≤0.0003 |
Pb % | ≤0.005 | ≤0.002 | ≤0.0003 |
Cl– | ≤0.005 | ≤0.002 | ≤0.001 |
Cerium Nitrate
- Formula: Ce(NO3)3·6H2O
- Nol.wt.: 434.22
- CAS: 10294-41-4
- Appearance: Colorless granular crystal
- Uses: Mainly used for analyzing reagents and catalysts, it can also be used in the pharmaceutical industry.