used in flux of electrolytic aluminum, pesticide, flux of ceramic colors, anti-rubbing filling agent of resin and rubber, electr
Molecular formula: Na3AlF6
Properties: It is crystalline white powder. Slightly soluble in water, density 2.95-3, melting point 1000 o C, easily absorbing water and become damp, decomposed by strong acids like sulfuric acid and hydrochloride, then producing hydrofluoric acid and relevant aluminum salt and sodium salt.