Beryllium fluoride is primarily used in the production of beryllium metal and beryllium alloys. It serves as a key intermediate in the extraction process of beryllium from its ores. The compound is also utilized in the manufacturing of specialty glasses and ceramics, where it enhances thermal stability and resistance to thermal shock. In the nuclear industry, beryllium fluoride is employed as a component in molten salt reactors due to its ability to dissolve uranium and thorium compounds. Additionally, it finds application in the synthesis of other beryllium compounds and in research for its unique chemical properties.