Europium oxide has two common structures: Monoclinic (mS30, SpaceGroup = C2/m, No. 12) and cubic (cI80, SpaceGroup = Ia-3, No. 206). The cubic structure is similar to that of manganese oxide.
It may be formed by ignition of europium metal.
It can react with acids to form the corresponding europium salts.
|Molar mass||351.926 g/mol|
|Appearance||white to light-pink solid powder|
|Melting point||2,350 °C (4,260 °F; 2,620 K)|
|Boiling point||4,118 °C (7,444 °F; 4,391 K)|
|Solubility in water||Negligible|
|Magnetic susceptibility (χ)||+10,100·10−6 cm3/mol|
|Thermal conductivity||2.45 W/(m K)|
|Application||Used as a red or blue phosphor in television sets and fluorescent lamps, and as an activator for yttrium-based phosphors. It is also an agent for the manufacture of fluorescent glass|
|Crystal structure||Monoclinic, Cubic|