Ammonium Metavanadate 98%

Ammonium metavanadate is an inorganic compound with a variety of industrial and laboratory applications.Here's a more detailed look:

Chemical and Physical Properties:12

• Chemical Formula: NH₄VO₃
• Appearance: Typically a white crystalline powder, though it can appear yellowish due to impurities of vanadium pentoxide (V₂O₅).
• Solubility: Slightly soluble in cold water, more soluble in hot water.
• Decomposition: Decomposes upon heating, releasing ammonia (NH₃), water (H₂O), and vanadium pentoxide (V₂O₅). This thermal decomposition is a key step in some industrial processes.
• Structure: It has a polymeric structure.
• Density: 2.326 g/cm³
• Melting Point: Decomposes above approximately 200°C.

Applications:

• Vanadium Production:
  • A primary use is as an intermediate in the production of vanadium pentoxide (V₂O₅), a crucial industrial catalyst.
  • It's used to purify vanadium from ores.
• Catalyst:
  • It itself, or its decomposition product vanadium pentoxide, is used as a catalyst in various chemical reactions.
  • It is used in the production of sulfuric acid.
• Dyes and Inks:
  • Historically, it has been used in the production of certain dyes and inks.
• Laboratory Reagent:
  • It serves as a reagent in analytical chemistry.
• Other uses:
  • Used in photography.
  • Used in the production of some paints.

Hazards:

• Toxicity: Ammonium metavanadate is toxic if ingested or inhaled.
• Irritant: It can irritate the skin, eyes, and respiratory system.
• Environmental Hazard: Vanadium compounds can be harmful to aquatic life.
• When heated, it can release toxic fumes. 

Important Notes:

• Handling ammonium metavanadate requires appropriate safety precautions, including the use of personal protective equipment (PPE) and adequate ventilation.
• Because of its toxicity, care must be taken with the disposal of this material.