Ammonium Metatungstate Properties

Ammonium metatungstate is also called AMT, it is inorganic chemical product. Its molecular formula is H8N2O4W and molecular weight is 283.9145. CAS number is 11120-25-5;14311-52-5. It is white or slightly yellow crystals which has no harmful components and slightly acidic. The solubility in water is 303.99/loogH:O when 20℃, aqueous fairly stable. It is insoluble in alcohol.

Ammonium metatungstate can be used as catalysts, capacitors, nuclear shielding, flame retardants, corrosion inhibitors raw materials, but also excellent raw materials in the preparation of ultra fine tungsten powder, tungsten heavy alloy powder, phosphotungstic acid, arsenic acid, silicon tungstate. It can also be used as reagents for chemical analysis such as for chemical diagnosis; source material for the preparation of high purity tungsten trioxide used as a thin film substrate for certain semiconductor devices; high purity source material for research in tungsten chemistry; source material for DENOX catalysts industry; as a precursor to a variety of POM (polyoxometalates).



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