CAS No.:15096-52-3;1344-75-8 Molecular Formula: Na3AlF6 Quality Standard: GB/T4291-2007 Specifications: CH-1 F 52 Al 12 Na 33 SiO2 0.25 Fe2O3 0.05 SO42- 0.6 CaO 0.15 P2O5 0.02 H2O 0.20 Loss of Lgnition 2.0 Physical properties: Cryolite is a kind of complex compound or double salt. Caused by impurity, the appearance can be white, gray ,yellow powder or crystalline particles. It's melting point is 1025, stacking density is 0.6-1.0g/L, true density is 2.95-3.05g/cm 3 , heat of formation is 225KJ, specific gravity is 2.75-3.00g/cm 3 , heat of fusion is 107KJ. Slightly solubte in water. Applications Aluminium- metallurgy: as component of fluxing agents, protective and refining salts; Production of abrasives: as active filler in resinbonded abrasives for metal treatment; Production of enamel, glazing frits and glass: as flux and opacifying agent; Production of soldering agent: as component for fluxing agents; Production of welding agents: as component of welding rod coatings and welding powders; Blasting and pyrotechnics: for fireworks; Metal surface treatment: as component in pickling pastes for stainless steel. In 50kgs PP bags, Lined with high-pressure plastic film, or according to customer's requirements.