Samarium(III) oxide is a chemical compound. Samarium oxide readily forms on the surface of samarium metal under humid conditions or temperatures in excess of 150°C in dry air. Similar to rust on metallic iron, this oxide layer spalls off the surface of the metal, exposing more metal to continue the reaction.
Samarium (III) oxide in Pakistan
Formula: Sm2O3
Molar mass: 348.72 g/mol
Density: 8.35 g/cm³
Melting point: 2,335 °C
Boiling point: 4,118 °C
Solubility in water: insoluble
Crystal structure: Cubic, cI80
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