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Lanthanum Oxide

Lanthanum Oxide

Category: Rare Earth Oxides

Formula La2O3
CAS No. 1312-81-8
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

0.000
3
0.000
5
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

Individual Rare earth including Lanthanum, Cerium, Neodymium, Praseodymium, Samarium, Europium, Gadolinium, Dysprosium, Terbium, Holmium, Erbium, Ytterbium, Lutetium, Thulium, Scandium and Yttrium.

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