HM stocks a wide variety of rare earth materials for use in electronics, petrochemical, metallurgy, machinery, energy, environmental protection, agriculture and other fields. We also offer pure metals and compounds for R&D applications.

Density: N/A
Melting Point: N/A
Solubility: Soluble in water and strong mineral acids
Stability: Slightly hygroscopic

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.

Grade	99.999%	99.99%	99.9%	99%
CHEMICAL COMPOSITION
CeO2/TREO (% min.)	99.999	99.99	99.9	99
TREO (% min.)	99	99	99	99
Loss on ignition (% max.)	1	1	1	1
Rare Earth Impurities	ppm max.	ppm max.	% max.	% max.
La2O3/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Y2O3/TREO	2 2 2 2 2	50 50 20 10 10	0.1 0.1 0.05 0.01 0.01	0.5 0.5 0.2 0.05 0.05
Non-Rare Earth Impurities	ppm max.	ppm max.	% max.	% max.
Fe2O3 SiO2 CaO PbO Al2O3 NiO CuO	10 50 30 5 10 5 5	20 100 100 10	0.02 0.03 0.05	0.03 0.05 0.05