Samarium Oxide (Sm2O3)-Powder

Characteristic

Samarium(III) oxide (Sm₂O₃) is a chemical compound.The oxide is commonly white to off yellow in color and is often encountered as a highly fine dust like powder.

Chemical formula：Sm₂O₃

Molar mass： 348.72 g/mol

Appearance： yellow-white crystals

Density： 8.347 g/cm³

Melting point： 2,335 °C (4,235 °F; 2,608 K)

Boiling point： Not Stated

Solubility in water：insoluble

Magnetic susceptibility (χ)：+1988.0·10⁻⁶ cm³/mol

Crystal structure：cubic

Application

Samarium(III) oxide is used in optical and infrared absorbing glass to absorb infrared radiation. Also, it is used as a neutron absorber in control rods for nuclear power reactors. The oxide catalyzes the dehydration and dehydrogenation of primary and secondary alcohols. Another use involves preparation of other samarium salts.