Sodium Tungstate Content

Sodium Tungstate Picture

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
WO3
69
69
68
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