Used as an additive in the electrolytic production of aluminum from bauxite, reducing the melting temperature of the electrolyte, improving electrical conductivity, and minimizing energy loss in smelting furnaces. Also employed as a fluxing agent in aluminum casting and refining processes to remove impurities and improve metal fluidity. Enhances grain refinement when added to aluminum-silicon alloys. Utilized in the production of specialty ceramics and refractory materials due to its thermal stability. Additionally, used in surface treatment of metals for improved corrosion resistance, particularly in humid and harsh chemical environments. Finds niche applications in the synthesis of fluoride-based glasses and in some electrochemical processes.