Although both ammonium metatungstate (AMT) and ammonium heptamolybdate (AHM) are important transition metal compounds with wide applications in the chemical industry, they differ in terms of chemical composition, molecular structure, physical and chemical properties, production technologies, and specific applications.

The purity of Ammonium Metatungstate is typically categorized based on the application scenario:

Ammonium metatungstate (AMT) and ammonium paratungstate (APT) are both important tungsten compounds, classified as ammonium salts of tungsten. They contain tungsten (W), nitrogen (N), hydrogen (H), and oxygen (O), and are commonly used in the preparation of downstream products such as tungsten trioxide and tungsten powder. However, they differ in chemical composition, physicochemical properties, production processes, and applications.

Chemical activity refers to the ease with which a substance undergoes a chemical reaction. Ammonium metatungstate (AMT) exhibits chemical activity primarily through its decomposition and transformation behavior under acidic conditions and thermal treatment. As a precursor to tungsten compounds, AMT plays a vital role in industrial applications and chemical synthesis.