Europium hydride is the most common

hydride In chemistry, a hydride is formally the anion of hydrogen (H−), a hydrogen ion with two electrons. In modern usage, this is typically only used for ionic bonds, but it is sometimes (and has been more frequently in the past) applied to all che ...

europium Europium is a chemical element; it has symbol Eu and atomic number 63. It is a silvery-white metal of the lanthanide series that reacts readily with air to form a dark oxide coating. Europium is the most chemically reactive, least dense, and soft ...

with a chemical formula EuH₂. In this compound, europium atom is in the +2 oxidation state and the hydrogen atoms are −1. It is a

ferromagnetic Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagne ...

semiconductor A semiconductor is a material with electrical conductivity between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (" doping") to its crystal structure. When two regions with different doping level ...

Production

Europium hydride can be produced by directly reacting

and

hydrogen gas Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest and most abundant chemical element in the universe, constituting about 75% of all normal matter. Under standard conditions, hydrogen is a gas of diatomi ...

: : Eu + H₂ → EuH₂

Uses

EuH₂ can be used as a source of Eu²⁺ to create metal-organic frameworks that have the Eu²⁺ ion.

References

{{Hydrides by group Europium(II) compounds Metal hydrides Ferromagnetic materials Semiconductor materials