synthetic cryolite

synthetic cryolite MolecularFormula:Na3AlF6 MolecularWeight:209.94 CASNO.:13775-53-6 QualityStandardGB4291--84 IndexName Grandmaster FirstClass SecondClass F%≥ 53 53 53 Al%≥ 13 13 13 Na%≤ 31 31 31 SiO2+Fe2O3%≤ 0.25 0.40 0.50 2- SO4%≤ 0.8 1.2 1.5 P2O5%≤ 0.02 0.05 0.05 H2O%≤ 0.5 0.8 1.3 Packing&Storage: Packedin25kgor50kgplasticwovenbagswithpolyethylenelinerandwithobvioussignofdrugs;Storedindryandcoolwarehousewithpackagessealedandawayfromrainandwetting. Properties&Applications: Colorlessmonocliniccrystal;Itslightlysolubleinthewater,andthewatersolutionshowstheacidity.Whenmixedwithsulfuricacid,itwillbedecomposedwiththevirulenthydrogenfluoride;Itismainlyusedasfluxforaluminumproduction,pesticide,andforglass,enamel,resinandrubberindustriesaswell.