Code | CC-3.5N | CC-4N |
Total amount of rare earth oxides % | ≥68 | ≥68 |
Cerium purity and relative rare earth impurities | ||
CeO2/TREO % | ≥99.95 | ≥99.99 |
La2O3/TREO % | ≤0.02 | ≤0.004 |
Pr6O11/TREO % | ≤0.01 | ≤0.003 |
Nd2O3/TREO % | ≤0.01 | ≤0.003 |
Sm2O3/TREO % | ≤0.005 | ≤0.001 |
Y2O3/TREO % | ≤0.005 | ≤0.001 |
Non rare earth impurity | ||
Ca% | ≤0.005 | ≤0.003 |
Fe% | ≤0.003 | ≤0.002 |
Na% | ≤0.005 | ≤0.003 |
K% | ≤0.003 | ≤0.001 |
Pb% | ≤0.003 | ≤0.001 |
Al% | ≤0.002 | ≤0.001 |
SiO2% | ≤0.02 | ≤0.01 |
Cl–% | ≤0.01 | ≤0.005 |
SO42- % | ≤0.03 | ≤0.03 |
Cerium Hydroxide
- Formula: Ce(OH)4
- Nol.wt.: 208.1
- CAS: 12014-56-1
- Appearance: Pale yellow or yellow brown powder
- Uses: Used as clarify and decolorant in the industry of glass and also used to enhance the uv protection of glass.