How to Produce Tungstic Acid by Using Tungstate

Details: Category: Tungsten Information; Published on Tuesday, 26 August 2014 14:50; Written by jwy; Hits: 530

Tungstate is anion containing tungsten acid group (WO4 2-) or poly tungsten acid group (W7O24 6-) salt. Some of tungstate exist in the form of hydrate with a strong alkaline solution, but some are difficult soluble, crystal in tungstate contains discrete tetrahedron structure of ions, slow hydrolysis polymerization in aqueous solution, in acidic solution could be quickly aggregated into more acid salt. Tungstate used as functional materials used as ceramic material, catalyst, pigment, preservative and fire prevention agent, also are a good raw material for producing tungsten acid.

How to produce tungstic acid by using tungstate, first of all, tungstate as raw materials, and heating according to the proper amount of tungsten acid salt in the beaker, when heated to boiling, continue to heat the water in the beaker to join the hydrochloric acid, available to the tungsten acid. Tungstate has fixed the dehydration temperature, finished product is actually made by insoluble in water, except hydrofluoric acid, insoluble in other organic acids. Can be used for the mordant, analytical reagent, catalyst, water treatment agents, making fire prevention, waterproof material, and phosphotungstic acid salt, boron tungstate, etc.

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