Synthetic Cryolite
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CAS No.: 15096-52-3;1344-75-8
Molecular Formula：Na3AlF6
Quality Standard: GB/T4291—2007
Specifications：
Items Class | Chemical Composition / % | |||||||||
Not less than | Not more than | |||||||||
F | Al | Na | SiO2 | Fe2O3 | SO4 | CaO | P2O5 | H2O | Loss of Ignition , 550℃30min | |
CH-0 | 52 | 12 | 33 | 0.25 | 0.05 | 0.6 | 0.15 | 0.02 | 0.20 | 2.0 |
CH-1 | 52 | 12 | 33 | 0.36 | 0.08 | 1.0 | 0.20 | 0.03 | 0.40 | 2.5 |
CM-0 | 53 | 13 | 32 | 0.25 | 0.05 | 0.6 | 0.20 | 0.02 | 0.20 | 2.0 |
CM-1 | 53 | 13 | 32 | 0.36 | 0.08 | 1.0 | 0.60 | 0.03 | 0.40 | 2.5 |
Physical properties: Synthetic 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.
Packing: In 50kgs PP bags, Lined with high-pressure plastic film, or according to customer's requirements.
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