Code | LS-3.5N | LS-4N |
Total amount of rare earth oxides % | ≥37 | ≥37 |
Cerium purity and relative rare earth impurities | ||
La2O3/TREO % | ≥99.95 | ≥99.99 |
CeO2/TREO % | ≤0.002 | ≤0.004 |
Pr6O11/TREO % | ≤0.001 | ≤0.002 |
Nd2O3/TREO % | ≤0.001 | ≤0.002 |
Sm2O3/TREO % | ≤0.005 | ≤0.001 |
Y2O3/TREO % | ≤0.005 | ≤0.001 |
Non rare earth impurity | ||
Ca% | ≤0.005 | ≤0.002 |
Fe% | ≤0.005 | ≤0.002 |
Na% | ≤0.005 | ≤0.002 |
K% | ≤0.003 | ≤0.001 |
Pb% | ≤0.003 | ≤0.001 |
Al% | ≤0.005 | ≤0.002 |
Lanthanum Sulfate Hydrare
- Formula: La2(SO4)3·8H2O
- Nol.wt.: 709.8
- CAS: 57804-25-8
- Appearance: White crystals
- Uses: Used as preservative, determination of atomic weight of elements, spectroscopic analysis, reagent, etc.