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                      youxian shengfa fine chemical co.,ltd.
                       
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                      Cryolite

                      ? Molecular formula:Na3AlF6
                      ? Molecular weight :209.94
                      ? Properties:Crystal white powder. Slightly soluble in water, density 2.95~3, melting point 1000℃
                      ?Use:Electrolytic aluminium flux, pesticide, flux, auxiliaries.
                      ?GB/T4291-1999

                      Chemical Constituents

                      Special grade

                      First order

                      Second grade

                      Fluorine(F)% ≥

                      53

                      53

                      53

                      Sodium (Na)%≤

                      32

                      32

                      32

                      Aluminum (Al)%≥

                      13

                      13

                      13

                      Water(H2O)%≤

                      0.4

                      0.5

                      0.8

                      Silica(SiO2)%≤

                      0.25

                      0.36

                      0.4

                      Ferric oxide (Fe2O3)%≤

                      0.05

                      0.08

                      0.10

                      Sulfate(SO4)% ≤

                      0.7

                      1.20

                      1.30

                      Phsophorus pentoxide(P2O5)% ≤

                      0.02

                      0.03

                      0.03

                      Ignition loss 550,30MIN ≤

                      2.5

                      3.00

                      3.00

                      Calcium oxide% ≤

                      0.10

                      0.15

                      0.20

                      products
                      Sodium fluoride
                      Cryolite
                      White carbon black
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