Sodium Tungstate
|
Index name
|
Index%
AR |
Top grade
(export grade) |
Industrial products
|
|
WO3
|
≥69.0
|
≥69.0
|
≥68.0
|
|
Mo
|
≤0.002
|
≤0.02
|
≤0.04
|
|
As
|
≤0.001
|
≤0.002
|
|
|
Cu
|
≤0.0002
|
|
|
|
Fe
|
≤0.001
|
≤0.002
|
|
|
SO4
|
|
≤0.02
|
0.01
|
|
Si
|
≤0.004
|
|
≤0.04
|
|
Water insolubles
|
≤0.005
|
≤0.01
|
|
|
PH
|
8-9
|
8-9
|
|
|
Heavy metals (Pb)
|
≤0.001
|
≤0.002
|
|
|
Cl
|
|
≤0.03
|
|
Uses: It is the intermediates product of Tungsten material; Can also be used in mordant, catalysts, pigments and analytical reagent, used as a weighting agent of fabric in the textile industry, used in the manufacturing of flame-retarding, waterproof fabric.
Packing: 25kg Cardboard barrel or plastic woven bag .
