Characteristic

 

Thulium(III) oxide is a pale green solid compound, with the formula Tm₂O₃.

Chemical formula：Tm₂O₃

Molar mass： 385.866 g/mol

Appearance： greenish-white cubic crystals

Density： 8.6 g/cm³

Melting point： 2,341 °C (4,246 °F; 2,614 K)

Boiling point： 3,945 °C (7,133 °F; 4,218 K)

Solubility in water：slightly soluble in acids

Magnetic susceptibility (χ)：+51,444·10−6 cm³/mol

Crystal structure：Cubic, cI80

 

Application

 

Mainly used in the manufacture of portable X-ray transmission devices also used as control materials for reactors.