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Sodium Tungstate

Muby Chemicals established in the year 1976, is pioneer in Manufacturing Chemicals for Oil and Gas Exploration, Hydraulic Fracturing (Fracking) and coiled tube Chemicals.Our advanced chemistry leading to an innovative and high-performance product range is coupled with effective on and off site management services.

We are manufacturer of Specialty chemicals, Pharmaceutical Excipients, Fragrance & Flavorchemicals in India, which are of IP, BP, USP, Ph. Eur., FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade, Pure and Technical Grades of various chemicals.


Sodium tungstate is the inorganic compound with the formula Na2WO4. This white, water-soluble solid is the sodium salt of tungstic acid. It is useful as a source of tungsten for chemical synthesis. It is an intermediate in the conversion of tungsten ores to the metal.

General Specifications of Sodium Tungstate
Appearance: White Crystalline Powder
Assay: 99% minimum
WO3: 69.0% minimum
Clarity of Solution: 2% solution in distilled water is clear.
Cl: 0.02% maximum
SO4: Maximum 0.01%
Mo: 0.01% maximum
Fe: 100 ppm maximum
Insoluble matter: Maximum 0.01%
pH (5% solution): 8~10

Sodium Tungstate Dihydrate ACS Reagent
Na2WO4 . 2H2O — Formula Wt 329.86
CAS Number 10213-10-2
Assay: 99.0-101.0% Na2WO4 . 2H2O

Insoluble matter: 0.01% 
Titrable free base: 0.02 meq/g 
Chloride (Cl): 0.005% 
Molybdenum (Mo): 0.001%
Nitrogen compounds (as N): 0.001% 
Sulfate (SO4): 0.01%
Heavy metals and iron (as Pb): 0.001%