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Potassium fluoroaluminate( Potassium Cryolite)
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Chemical Names: Potassium fluoroaluminate¡Fpotassium aluminium fluoride
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Formula: KAlF4, K3AlF6
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¦¨¤À | F | Al | K | Fe2O3 | SO4 | H2O |
50-52 | 17-18 | 29-32 | 0.01 | 0.05 | 1.2 | |
¤@¯Å | 49-51 | 17-18 | 28-32 | 0.1 | 0.6 | |
¤G¯Å | 45-51 | 15-19 | 27-35 | 1.0 |
Spec: (%)
F | Al | K | Fe2O3 | SO4 | H2O | |
Super grade | 50-52 | 17-18 | 29-32 | 0.01 | 0.05 | 1.2 |
I grade | 49-51 | 17-18 | 28-32 | 0.1 | 0.6 | |
II grade | 45-51 | 15-19 | 27-35 | 1.0 |
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Properties: white or grey-white crystal powder; fineness: 20, 40, 100, 200 and 325mesh, composed by KF-AlF3, Molecular rate near 1.2, melting point 557¢J-580¢J. Solubility in 1000g water: at 0¢J: 0.8g; at 25¢J: 1.42g¡Aat 100¢J: 4.58g.
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Application¡GIt is used as welding flux in aluminum alloy and stainless steel, a degasser and an
auxiliary solvent in aluminum alloy fabrication, also used as an active filler for glass, ceramic and friction compound.
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Packing: in 25/1000kg plastic woven bags with film lining.
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