Sodium Tungstate Dihydrate

Sodium tungstate, colorless crystal or white crystalline powder. Weathering in dry air, the crystallization of water at 100 degrees to become anhydrous. Soluble in water, insoluble in ethanol, slightly soluble in liquid ammonia, a weak alkaline aqueous solution. Relative density 3.23 ~ 3.25. Melting point 698 DEG C (anhydrous). In case of acid decomposed into water soluble tungstate (H2WO4).

WO3 content:68%min
Packing: In iron drum of 50 or 100kg net each
Remarks: Any special requirement to the specifications can be discussed

Sodium Tungstate Dihydrate
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Grade properties

 Element  Mo  As  Fe  Cu  Al  SO4  Cl  NO3
 Impurities  0.02  0.075  0.005  0.005  0.0075  0.1  0.1  0.1

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