The Europium metals readily react with hydrogen to form EuH2, and, by raising the hydrogen pressure, the trivalent Eu metals also form the EuH3 phase. Both the EuH2 and EuH3 phases are nonstoichiometric (that is, the numbers of atoms of the elements present cannot be expressed as a ratio of small whole numbers). Applications: Valency three europium produces a red radiance and valency two europium produces a blue radiance. When both valences are combined a white light is produced which is used in compact fluorescent bulbs. Molecular Formula: EuH3 Alfa Chemistry Materials product group: Metal Manufacturer data sheet |