It can be used as an additive to the aluminum reduction process and regulates the temperature of molten electrolyte bath; as the anti-zymotic solvent for the production of alcohol; as assistant flux for the ceramic glaze of the china and the flux of the non-ferrous metal; as welding solution during the operation of welding; can be used to produce optics lenses; can be used as the catalyst of organic synthesis and the material of the man-made cryolite. NAMESPECIFICATIONExtrapureI ExtrapureII GradeI GradeII F %61 60 58 57 AL %30 30 28.2 28 NA %0.5 0.5 3 3.5 SiO2 %0.28 0.3 0.3 0.35 Fe2O3 %0.1 0.13 0.13 0.15 SO4 ² %0.5 0.8 1.1 1.2 P2O5 %0.04 0.04 0.04 0.04 H2O550 1H %0.5 1 6 7