Lanthanum Oxide
 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		 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.
Products available
Product Code 5790 5791 5792 5793 5795 5797
Grade 99.9999% 99.999% 99.995% 99.99% 99.9% 99%
CHEMICAL COMPOSITION
La2O3/TREO (% min.) 99.9999 99.999 99.995 99.99 99.9 99
TREO (% min.) 99.5 99 99 98 98 98
Loss on ignition (% max.) 1 1 1 2 2 2
Rare Earth Impurities ppm max. ppm max. ppm max. ppm max. % max. % max.
CeO2
Pr6O11
Nd2O3
Sm2O3
Eu2O3
Gd2O3
Y2O3		 0.5
0.5
0.5
0.2
0.2
0.2
0.5		 3
3
2
2
2
2
5		 5
5
5
5
5
5
5		 50
50
50
10
10
10
10		 0.05
0.02
0.02
0.01
0.001
0.001
0.01		 0.5
0.1
0.1
0.1
0.1
0.1
0.1
Non-Rare Earth Impurities ppm max. ppm max. ppm max. ppm max. % max. % max.
Fe2O3
SiO2
CaO
CoO
NiO
CuO
MnO2
Cr2O3
CdO
PbO		 1
10
10
2
2
2
2
2
5
5		 2
50
50
2
2
2
2
2
5
5		 10
50
50
2
2
2
2
3
5
10		 50
100
100
5
5
3
5
3
5
50		 0.01
0.05
0.2		 0.02
0.1
0.5
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 Request for Quotation, you will receive our prompt reply within 24 hours.