Used primarily as a flux in aluminum smelting and welding processes, it helps lower the melting point of metal mixtures and improves the fluidity of molten aluminum, allowing for cleaner, more efficient metal transfer and reduced energy consumption. It is also employed in the production of refractory materials and ceramic components due to its thermal stability and resistance to chemical attack. In some cases, it serves as a grain refiner in aluminum alloys to enhance mechanical properties and surface finish in cast products.