Lanthanum Oxide

Chemical CompositionLanthanum Oxide
La2O3/TREO (% min.)99.999999.99999.999599.9999.999
TREO (% min.)99.59999989898
Loss on ignition (% max.)111222
Rare Earth Impuritiesppm max.ppm max.ppm max.ppm max.% max.% max.
CeO2/TREO0.535500.050.5
Pr6O11/TREO0.535500.020.1
Nd2O3/TREO0.525500.020.1
Sm2O3/TREO0.225100.010.1
Y2O3/TREO0.555100.010.1
Non-Rare Earth Impuritiesppm max.ppm max.ppm max.ppm max.% max.% max.
Fe2O31210500.010.02
SiO21050501000.050.1
CaO1050501000.20.5
PbO551050
CoO2225
NiO2225
CuO2223

Brief information of Lanthanum Oxide:

Formula: La2O3
CAS No.: 1312-81-8
Molecular Weight: 325.82
Density: 6.51 g/cm3
Melting point: 2315°C
Appearance: White powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Strongly hygroscopic
Multilingual: LanthanOxid, Oxyde De Lanthane, Oxido De Lanthano

Application of Lanthanum Oxide :

Lanthanum Oxide, also called Lanthana, high purity Lanthanum Oxide (99.99% to 99.999%) is applied in making special optical glasses to improves the alkali resistance of glass,  and is used in La-Ce-Tb phosphors for fluorescent lamps and making special optical glasses, such as infrared-absorbing glass, as well as camera and telescope lenses, Low grade of Lanthanum Oxide is widely used in ceramics and FCC catalyst, and also as raw material for Lanthanum Metal production; Lanthanum Oxide is also used as a grain growth additive during the liquid phase sintering of Silicon Nitride and Zirconium Diboride.