Solubility of Tungsten Acid

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Category: Tungsten Information
Published on Tuesday, 23 June 2015 15:57

Tungstic acid is insoluble in most acids, but dissolves slightly in hydrochloric acid and is readily soluble in hydrofluoric acid, as is shown in the following table:

 

Solvent. Temperature, °C. Grams WO3 in 100 Grams Solution.
Hydrofluoric acid (40 per cent. HF) 25 44.75
Hydrofluoric acid (40 per cent. HF) 50 53.7
Hydrochloric acid (38 per cent. HCl) 50 0.36
Hydrochloric acid (38 per cent. HCl) 80

0.75

It is readily soluble in alkalies.

 

 

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