CAS 1312-81-8 Lanthanum Oxide
Product Name: Lanthanum oxide
CAS: 1312-81-8;12680-02-3
Molecular Formula: La2O3
Molecular Weight: 325.809
Synonyms: Lanthanum(III) oxide;lanthanum(+3) cation;oxygen(-2) anion
Lanthanum Oxide CAS 1312-81-8 La2O3, also called Lanthana, high purity Lanthanum Oxide (99.99% to 99.999%)
-Be applied in making special optical glasses to improves the alkali resistance of glass.
-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.
Specification
| Code | 3N | 4N | 4.5N |
| TREO% | ≥97 | ≥98 | ≥98 |
| La purity and relative rare earth impurities | |||
| La2O3/TREO % | ≥99.9 | ≥99.99 | ≥99.995 |
| CeO2/TREO % | ≤0.05 | ≤0.007 | ≤0.004 |
| Pr6O11/TREO % | ≤0.01 | ≤0.001 | ≤0.0005 |
| Nd2O3/TREO % | ≤0.01 | ≤0.001 | ≤0.0005 |
| Sm2O3/TREO % | ≤0.01 | ≤0.001 | ≤0.0005 |
| Y2O3/TREO % | ≤0.01 | ≤0.001 | ≤0.0005 |
| Non rare earth impurity | |||
| Fe2O3 % | ≤0.005 | ≤0.003 | ≤0.0003 |
| SiO2 % | ≤0.02 | ≤0.015 | ≤0.005 |
| CaO % | ≤0.05 | ≤0.01 | ≤0.005 |
| Na % | ≤0.005 | ≤0.003 | ≤0.002 |
| MnO2 % | ≤0.003 | ≤0.002 | ≤0.001 |
| AL2O3 % | ≤0.01 | ≤0.007 | ≤0.005 |
| PbO % | ≤0.01 | ≤0.005 | ≤0.003 |
| Cl- % | ≤0.1 | ≤0.06 | ≤0.04 |
| Radioactive | 1Bq/g | ||
| 1000ºC 2hr | ≤ 3.0 | ≤ 2.0 | ≤2.0 |
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