Formula La₂O₃
CAS: 1312-81-8 MDL: MFCD00011071 EINECS: 215-200-5
Molecular Weight 325.82
Appearance White powder
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Strongly hygroscopic

Application: 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 also in La-Ce-Tb phosphors for fluorescent lamps. Low grade of Lanthanum Oxide is widely used in ceramics and FCC catalyst, and also as raw material for Lanthanum Metal production.

Standard Specifications

Grade	99.999%	99.995%	99.99%	99.9%	99%
CHEMICAL COMPOSITION
La2O3/TREO (% min.)	99.999	99.995	99.99	99.9	99
TREO (% min.)	99	99	99	98	98
Loss on ignition (% max.)	1.0	1.0	1.0	2.0	2.0
Rare Earth Impurities	% max.	% max.	% max.	% max.	% max.
CeO2/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Eu2O3/TREO Gd2O3/TREO Y2O3/TREO	0.0002 0.0002 0.0001 0.0001 0.0001 0.0001 0.0005	0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005	0.005 0.005 0.001 0.001 0.001 0.001 0.005	0.05 0.01 0.01 0.01 0.001 0.001 0.005	0.5 0.1 0.1 0.01 0.01 0.01 0.1
Non-Rare Earth Impurities	% max.	% max.	% max.	% max.	% max.
Fe2O3 SiO2 CaO CoO NiO CuO MnO2 Cr2O3 CdO PbO	0.0001 0.005 0.005 0.0002 0.0002 0.0002 0.0002 0.0002 0.0005 0.0005	0.0002 0.005 0.005 0.0002 0.0002 0.0002 0.0002 0.0003 0.0005 0.001	0.0005 0.01 0.01 0.0005 0.0005 0.0003 0.0005 0.0003 0.0005 0.001	0.005 0.05 0.05	0.01 0.05 0.05
Particle size (D50, microns)	2.0-6.0	50.0-60.0	2.0-7.0

 

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