Used as a reducing agent in inorganic and organometallic synthesis due to its strong electron-donating properties. Employed in research for the preparation of europium-containing materials, especially in phosphors and luminescent compounds when combined with other elements. Serves as a precursor in the development of specialty glasses and optical materials. Also utilized in solid-state chemistry to dope crystals for use in scintillation detectors and laser materials. Its reactivity makes it valuable in controlled atmosphere environments for synthesizing lower oxidation state europium compounds.