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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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      Copyright(C)2008,Youxian Shenfa Fine Chemical Co.,Ltd. All Rights Reserved.     Supported by ChemNet ChinaChemNet Toocle Copyright Notice
      3d今晚预测一个金胆码
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