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Characteristic
Holmium(III) oxide, or holmium oxide is a chemical compound of a rare-earth element holmium and oxygen with the formula Ho2O3.
Chemical formula：Ho2O3
Molar mass： 377.858 g·mol−1
Appearance： Pale yellow, opaque powder.
Density： 8.41 g cm−3
Melting point： 2,415 °C (4,379 °F; 2,688 K)
Boiling point： 3,900 °C (7,050 °F; 4,170 K)
Band gap： 5.3 eV
Magnetic susceptibility (χ)：+88,100·10−6 cm3/mol
Refractive index (nD)：1.8
Crystal structure：Cubic, cI80
Application
Holmium oxide is used in making specialty colored glasses. Glass containing holmium oxide and holmium oxide solutions have a series of sharp optical absorption peaks in the visible spectral range. They are therefore traditionally used as a convenient calibration standard for optical spectrophotometers.
Characteristic
Holmium(III) oxide, or holmium oxide is a chemical compound of a rare-earth element holmium and oxygen with the formula Ho2O3.
Chemical formula：Ho2O3
Molar mass： 377.858 g·mol−1
Appearance： Pale yellow, opaque powder.
Density： 8.41 g cm−3
Melting point： 2,415 °C (4,379 °F; 2,688 K)
Boiling point： 3,900 °C (7,050 °F; 4,170 K)
Band gap： 5.3 eV
Magnetic susceptibility (χ)：+88,100·10−6 cm3/mol
Refractive index (nD)：1.8
Crystal structure：Cubic, cI80
Application
Holmium oxide is used in making specialty colored glasses. Glass containing holmium oxide and holmium oxide solutions have a series of sharp optical absorption peaks in the visible spectral range. They are therefore traditionally used as a convenient calibration standard for optical spectrophotometers.
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