Imports yttria name: yttrium oxide Molecular formula: Y2O3 MW: 225.81 Description: Appearance: white powder. Hygroscopicity. In the air quickly absorbs ammonia and ammonia from ammonium salt replacement. Soluble in dilute acid, almost insoluble in water. The relative density of 5.03. Melting point 2410 ℃. Uses: manufacturing infrared spectrometer light source. Acetylene lamp and gas lamp mantles. The color TV tube phosphor. Zirconia refractories stabilizer. Phosphor. Magnetic materials. Storage: sealed dry preservation