Cas No. 1314-36-9 Molecular formula Y2O3 Molecular weight 225.81 Alias ​​yttrium oxide / nano yttrium oxide Yttrium oxide White slightly yellow powder, hygroscopic. It quickly absorbs ammonia in the air and displaces it from the ammonium salt. Insoluble in water and alkali; soluble in acid, easily absorb carbon dioxide and water in exposed air. The lethal dose (rat, abdominal cavity) is 500 mg / kg. Density: 5.03 Melting point: 2410 ° C RE purity ≥99.99% RE impurities, ppm: ≤La2O3 2ppmCeO22ppmPr6O112ppmNd2O3 2ppmSm2O3 2ppmEu2O3 2ppmGd2O3 2ppmTb4O7 2ppmDy2O3 5ppmHo2O3 5ppmEr2O3 5ppmEr2O3 5ppmEr2O3 : ≤Fe2O3 3 SiO220CaO 10CuO 2PbO 2NiO 3Cl- 200D50 μm3 ～ 6 Loss on ignition ≤1% Project high purity 5N grade Y2O3 ≥99.999 Rare earth impurities (%) ≤0.001 Fe2O3 (%) ≤0.001 SiO2 (%) ≤ 0.005CaO (%) ≤0.02 Sealed and stored dry. Product use: manufacture light source in infrared spectrometer. Gauze covers for acetylene lamps and gas lamps. Color TV tube phosphor. Zirconia refractory stabilizer. Phosphor. Artificial gem laser crystals, superconducting materials, and many cutting-edge applications in the electronics industry.
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