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Sodium Tungstate Content
Formula:Na2WO4•2H2O.2H2O
Nature : a white crystalline powder, rhomboidal, mineral spinel structure.In dry air weathering.
Spesification：
Element |
purity |
ClassⅠ |
ClassⅡ |
Na2WO4.2H2O |
99 |
98 |
97 |
Mo |
0.001 |
0.02 |
-- |
AS |
0.001 |
0.001 |
0.001 |
Cu |
0.0005 |
0.001 |
0.001 |
Fe |
0.001 |
0.001 |
0.005 |
Si |
0.004 |
0.04 |
0.04 |
Water insoluble |
0.005 |
0.05 |
0.05 |
PH |
8.5-9 |
8.5-9 |
8.5-9 |
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