Ammonium metavanadate

Ammonium metavanadate

Ammonium metavanadate/ CAS: 7803-55-6

Physical Properties
Ammonium metavanadate is a yellow-white solid crystalline powder with the formula NH₄VO₃. Used as a source of vanadium in various chemical reactions and industrial processes. Here are some of its key characteristics:
It is moderately soluble in water, forming a slightly acidic solution due to the hydrolysis of vanadium. Solubility increases in acidic solutions, where it can dissolve more readily.

Chemical Properties
Vanadium in ammonium metavanadate is in the +5 oxidation state. This is important for its reactivity and utility in various chemical processes.
It can act as a weak acid. In solution, it can release protons depending on the pH and the associated ions.

Applications:

  • Catalyst Production: It is used to produce vanadium pentoxide (V₂O₅), which is a key catalyst in the production of sulfuric acid and other chemical processes.
  • Dyeing and Printing: It is used in the textile industry for dyeing and printing fabrics.
  • Reagent: In laboratories, ammonium metavanadate is used as a reagent in analytical chemistry, especially in qualitative and quantitative analyses of phosphate and arsenic.
  • Metallurgy: It is used in some metallurgical applications to produce vanadium alloys.

Vanadium compounds, including ammonium metavanadate, can be toxic and should be handled with care. Proper safety protocols should be followed when using this compound.

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