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Sodium Tungstate Dihydrate

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Product Description

PRODUCT

Sodium Tungstate Dihydrate

CAS #

13472-45-2

SYNONYM

Sodium tungsten oxide (Na2WO4)

FORMULA

Na2WO4 x 2H2O

Product Specifications

NA2WO4 X 2H2O

>= 99.00% wt.

WO3

>= 69.00% wt.

MOISTURE

<= 10.0 - 11.3%

ALKALINITY

<= 0.10% wt. (Na2CO3)

INSOLUBLE MATTER

<= 0.02% wt.

CHLORIDE

<= 0.03% wt.

SULFATE

<= 0.02% wt.

IRON

<= 0.01% wt.

LEAD AS PB

<= 0.002% wt.

HEAVY METALS (AS PB)

<= 0.01% wt.

SOLUBILITY IN WATER, WO3 BASIS

<= 4.90 lb/gal (25C)

PH

8.0 - 10.0 (aqueous solutions)

NOTES

Used as a source os soluble tungsten for corrosion and fire inhibition, catalysts, ceramics, colors, and inks.

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