It finds applications in ceramic flux, glass manufacturing, metallurgy, electronics and dry-film lubricants. It is transparent from ultraviolet to infrared. Barium fluoride is usually employed as a scintillator material, and useful as a transmission window material for IR spectroscopy, mostly used for analysis of fuel oil samples. Of all the optical fluorides, it is the most resistant to high-energy radiation. It is used as a preopacifying agent, and in the production of enamel, welding agents, and glazing frits.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.