Cas No. :15096-52-3;1344-75-8;13775-53-6;12397-51-2
Molecular Formula：Na3AlF6
Quality Standard : GB/T4291—2007
Specifications：
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Class |
Chemical Composition ( Concentration )/ % |
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Not more than |
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F |
Al |
Na |
SiO2 |
Fe2O3 |
SO4= |
CaO |
P2O5 |
H2O |
Loss on ignition |
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Size distribution
| Granular |
0-10 mm |
| Sandy |
80 mesh |
| Powder | 200 mesh, 325mesh |
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.
Packing: In 50kgs PP bags, Lined with high-pressure plastic film, or according to customer's requirements.
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