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Specification
| Code | LF-3.5N | LF-4.0N |
| TREO% | ≥82 | ≥82 |
La purity and relative rare earth impurities
| La₂O₃/TREO % | ≥99.95 | ≥99.99 |
| CeO₂/TREO % | <0.02 | <0.004 |
| Pr₆O11/TREO % | <0.01 | <0.002 |
| Nd₂O₃/TREO % | <0.01 | <0.002 |
| Sm₂O₃/TREO % | <0.005 | <0.001 |
| Y₂O₃/TREO% | <0.005 | <0.001 |
Non rare earth impurities
| Ca % | <0.04 | <0.03 |
| Fe % | <0.02 | <0.01 |
| Na % | <0.02 | <0.02 |
| K % | <0.005 | <0.002 |
| Pb % | <0.005 | <0.002 |
| AI % | <0.03 | <0.02 |
| SO2 % | <0.05 | <0.04 |
| F- % | ≥27.0 | ≥27.0 |
| LOI% | <0.8 | <0.8 |
Description
White powder,insoluble in water,soluble in perchloric acid.Hygroscopic in air,should be stored in a sealed container.
Uses
For the preparation of modern medical image display techMology and nuclear science requirements of the scintilator crystal,laser materials of rare earth,rare earth fuoride glassoptical fiber and infrared glass.Usedin the manufacture of arc carbon electrodes in the light source for lighting.Used in the manufacture of special alloy and electrolytic production of metal Lanthanum in metallur gical industry.
ТЕГИ :
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