Lanthanum Oxide 99.99%
Lanthanum Oxide 99.99%, code 5793
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 99.99% 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, And it is also used as a grain growth additive during the liquid phase sintering of Silicon Nitride and Zirconium Diboride. The other main application is for phosphors.
Products available
Product Code: 5793 Standard Specification Typical Analysis Inspection Methods
Grade 99.99% 99.99%  
CHEMICAL COMPOSITION
La2O3/TREO (% min.) 99.99 99.99
TREO (% min.) 98 98 Volumetric Method
Loss on ignition (% max.) 2 1
Rare Earth Impurities ppm max. ppm
CeO2
Pr6O11
Nd2O3
Sm2O3
Eu2O3
Gd2O3
Y2O3		 50
50
50
10
10
10
10		 10
20
30
10
10
10
10		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities ppm max. ppm
Fe2O3
SiO2
CaO
CoO
NiO
CuO
MnO2
Cr2O3
CdO
PbO		 50
100
100
5
5
3
5
3
5
50		 50
50
100
5
3
3
5
3
5
50		 Spectrographic

Atomic Absorption Spectrographic
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.