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Sodium tungstate
Product name: Sodium tungstate
English name: Sodium tungstate
CAS no.: 13472-45-2
Molecular formula: Na2O4W
Molecular weight: 293.82714
Structural formula:
 

Item

Index %
Analyical pure

Superior product
(export grade)

Technical grade

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 insoluble matter

≤0.005

≤0.01

 

PH

8-9

8-9

 

Heavy metal (Pb)

≤0.001

≤0.002

 

Cl

 

≤0.03

 
 
Uses: It is intermediate product for producing tungsten products, it can also be used in mordant, catalyst, pigmeng and analytical reagent, in textile industry as weighting agent, etc.
Packing: 25KG, 50KG iron drum or woven bag.
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