Rare Earth Product Information
& Standard Specifications
product details
Cerium Oxide
Cerium Oxide 99.9%

Cerium Oxide, also called Ceria, is widely applied in glass, ceramics and catalyst manufacturing.
In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing. 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. It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass. It is applied to optical components to improve performance.
High purity Ceria are also used in phosphors and dopant to crystal.

Formula CeO2
CAS No. 1306-38-3
Molecular Weight 172.12
Appearance Brown to yellow
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Slightly hygroscopic
GermanCerOxidFrenchOxyde De Cerium SpanishOxido De Cerio
Standard Specifications
Product Code 5891 5893 5895 5897
Grade 99.999% 99.99%  99.9% 99%
CHEMICAL COMPOSITION     กก กก
CeO2/TREO (% min.) 99.999 99.99 99.9 99
TREO (% min.) 99 99 99 99
Loss on ignition (% max.) 1.0 1.0 1.0 1.0
Rare Earth Impurities % max. % max. % max. % max.
La2O3/TREO
Pr6O11/TREO
Nd2O3/TREO
Sm2O3/TREO
Y2O3/TREO
0.0002
0.0002
0.0002
0.0002
0.0002
0.005
0.005
0.001
0.001
0.001
0.1
0.1
0.01
0.01
0.01
0.5
0.5
0.05
0.05
0.05
Non-Rare Earth Impurities % max. % max. % max. % max.
Fe2O3
SiO2
CaO
PbO
Al2O3
NiO
CuO

0.0005
0.005
0.003
0.0005
0.001
0.0005
0.0005

0.001
0.01
0.01
0.001

0.02
0.03
0.05


0.03
0.05
0.05
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The standard specifications are only for reference, custom specification manufactures are welcomed. More detailed information including MSDS sheet, lot weight, packing condition, lead time and price are all ready on request, please just click at the product's grade, or Send An Enquiry, you will receive our prompt reply
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