Molecular Formula: Na3AlF6 Molecular Weight: 209.94 CASNO.: 13775-53-6 Properties&Applications: Colorless monoclinic crystal; It slightly soluble in the water, and the water solution shows the acidity. When mixed with sulfuric acid, it will be decomposed with the virulent hydrogen fluoride; It is mainly used as flux for aluminum production, pesticide, and for glass, enamel, resin and rubber industries as well. Packing&Storage: Packed in 25kg or 50kg plastic woven bags with polyethylene liner and with obvious sign of drugs; Stored in dry and cool warehouse with packages sealed and away from rain and wetting. Quality Standard:GB 4291--84 Index Name Grandmaster First Class Second Class 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