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Dysprosium Oxide (Dy2O3) is a sesquioxide compound of the rare earth metal dysprosium. It is a pastel yellowish-greenish, slightly hygroscopic powder.

Chemical formula:Dy2O3

Molar mass: 372.998 g/mol

Appearance: pastel yellowish-greenish powder.

Density: 7.80 g/cm3

Melting point: 2,408 °C (4,366 °F; 2,681 K)

Solubility in water:Negligible

Magnetic susceptibility (χ):+89,600·10−6 cm3/mol

Crystal structure:Cubic


Dysprosium(III) oxide is uses in ceramics, glass, phosphors, lasers and dysprosium metal halide lamps.