There are several methods that can be used to inspect and analyze ammonium metatungstate (AMT) to ensure its quality and purity. Here are some commonly used methods:

Ammonium metatungstate hydrate (AMT hydrate) is a crystalline solid compound that contains ammonium ions, tungstate ions, and water molecules in its structure. It is a hydrated form of ammonium metatungstate (AMT), which is a white crystalline powder that is commonly used in the production of tungsten alloys, catalysts, and pigments.

High purity ammonium metatungstate (HP-AMT) is a specialized form of ammonium metatungstate (AMT) that has a higher level of purity compared to standard industrial grade AMT.

Ammonium paratungstate (APT) and ammonium metatungstate (AMT) are two different types of ammonium tungstate compounds with different chemical properties and applications.