[Molecular Formula] Na3AlF6
[Molecular Weight] 209.94
[Properties]
Clorless monocrystal crystal, usually appears offwhite, pink, yellowish or black because of impurity, usually present as indiscerptible compact block with glass lustre, specific gravity: 2.9-3.0, melting point: 1000°C; slight soluble in water, aqueous solution is acidic, decompose to toxic hydrogen fluoride gas when meeting with sulfuric acid.
[Uses]
It is mainly used as fluxing agent in aluminum production, insecticide for crops, melting agent and opaquefier for enamel glaze; also used to produce opal glass and as electrolyte in producing aluminum alloy, iron alloy and boiling steel; as ingredient of grindstone and as raw material in dip coating of aluminum on iron and steel.
[Quality Index] Standard: GB 4291-84
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Item
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Index
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Note
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Excellent Grade
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First Grade
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Second Grade
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1. the content is based on dry base;
2. usually, the molecular ratio of NaF to AlF3 is 2 to 1; if the other requirement is needed, please declare in contract;
3. cryolite is white powder .
4. the agglomeration larger than 4mm in diameter is allowable, but the weight is not heavier than 5%.
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F£¬%≥
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53
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53
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53
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Al, %≥
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13
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13
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13
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Na, %≤
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31
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31
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31
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SiO2+Fe2O3, %≤
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0.25
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0.4
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0.5
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Sulfate(SO4), %≤
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0.88
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1.2
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1.5
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P2O5, % ≤
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0.02
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0.05
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0.05
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H2O,% ≤
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0.5
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0.8
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1.3
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[Package] plastic barrel, net weight: 25kg/barrel
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Inorganic fluorine chemical 
