Synthetic Cryolite Whiteã??Molecular formulaã??: Na3AlF6ã??Molecular weightã??: Â 209.5ã??CASã??: 15096-52-3ã??HS CODEã??:2826.3000ã??Standardã??: GB/T4291-2007ã??Specificationsã??:ItemContent (%)Na3AlF6:98% MinRatio (3Naf/AlF3):1.4%-1.5%Fluorine (F)â?¥52Aluminum (Al)13-15Sodium (Na)30-32Ferric Oxide (Fe2O3)â?¤0.02Silicon Oxide (SiO2)