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Sodium tungstate

 

CAS#：13472-45-2
Molecular weight：293.82714
Molecular formula：Na₂WO₄·2H₂O
Appearance：white crystal, insoluble in alcohol.
Use: produce intermediates of tungsten materials.

Packing：net weight: 25kg. brown paper compound bag lined with plastic bag or 50kg metal pail lined with plastic bag.

Specification

Chemical ingredients	Chemically pure	First grade	Second grade
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