Rare earth price of rare earth oxide cerium oxide polishing powder
Formula: CeO2
CAS No.: 1306-38-3
Molecular Weight: 172.12
Density: 7.22 g/cm3
Melting point: 2,400° C
Appearance: Yellow to tan powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly hygroscopic
Multilingual: Cerium Oxide, Oxyde De Cerium, Oxido De Cerio
1. Cerium Oxide, also called Ceria, is widely applied in glass, ceramics and catalyst manufacturing.
2. In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing.
3. It is also used to decolorize glass by keeping iron in its ferrous state. The ability of Cerium-doped glass to block out ultra violet light is utilized in the manufacturing of medical glassware and aerospace windows.
4. It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass.
5. It is applied to optical components to improve performance. High purity Ceria are also used in phosphors and dopant to crystal.
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Code
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CeO-3N
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CeO-3.5N
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CeO-4N
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TREO%
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≥99
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≥99
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≥99
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Cerium purity and relative rare earth impurities
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|||
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CeO2/TREO %
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99.9
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99.95
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99.99
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La2O3/TREO %
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≤0.08
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≤0.04
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≤0.004
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Pr6O11/TREO %
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≤0.01
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≤0.01
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≤0.003
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Nd2O3/TREO %
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≤0.005
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≤0.005
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≤0.001
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Sm2O3/TREO %
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≤0.004
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≤0.005
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≤0.002
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Y2O3/TREO %
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≤0.0001
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≤0.001
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≤0.001
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Non rare earth impurity
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|||
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Fe2O3 %
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≤0.005
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≤0.005
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≤0.002
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SiO2 %
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≤0.01
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≤0.005
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≤0.003
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CaO %
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≤0.01
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≤0.005
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≤0.003
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Cl- %
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≤0.06
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≤0.06
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≤0.040
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SO 2 4- %
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≤0.1
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≤0.05
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≤0.050
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