Dysprosium oxide (Dy2O3):
White powder. Slight moisture in the air can absorb moisture and carbon dioxide. Magnetic high-speed rail is many times stronger than the oxidation. Soluble in acid and ethanol. The relative density (d274) 7.81. A melting point of 2340 ±10 ℃. Boiling point 3900 ℃.
Purposes: as preparation of metal dysprosium materials, glass, NdFeB permanent magnet additive, also used metal halide, magneto-optical memory material, yttrium iron or yttrium aluminum garnet, atomic energy industry as a nuclear reactor control rod . Magnetic material. Lighting. Phosphor. Dysprosium oxide can also be used as an additive NdFeB permanent magnets, dysprosium add about 2 to 3 percent in such magnets, the coercive force can be improved.