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1.Slightly soluble in water, easily soluble in acid and generating corresponding salts, easily absorbed by carbon dioxide and water when exposed to air, gradually turning into lanthanum carbonate.
2.It can improve the refractive index, mechanical strength, water resistance, reduce glass dispersion, coefficient of thermal expansion, increase melting temperature, and facilitate crystallization and phase separation of glass.
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Lanthanum oxide is an inorganic compound with the chemical formula La ₂ O 3, and is a white powder. Soluble in acids, ethanol, and ammonium chloride, insoluble in water and ketones. The application of rare earth lanthanum oxide is very extensive, and it plays an important role in the fields of glass, خزف, electronics, الخ. Ultrafine lanthanum oxide is the powder of ordinary lanthanum oxide, with small particle size, stronger dispersion ability, and wider applicability.
| بند | Unit | Standard |
| TREO | % | >98.5 |
| La2O3/TREO | % | >99.95 |
| CeO2/TREO | % | <0.005 |
| Pr6O11/TREO | % | <0.003 |
| Cl- | % | <0.05 |
| Fe2O3 | % | <0.002 |
| Granularity（د50） | μm | ≤1.7 |
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