The chemical formula of ammonium metatungstate crystals can be expressed as **(NH₄)₆[H₂W₁₂O₄₀]-xH₂O**, where:
NH₄ represents the ammonium ion.
W represents the element tungsten, the key component in ammonium metatungstate.
O represents the element oxygen, which forms the structure of tungsten-oxygen octahedron with tungsten.
xH₂O represents the amount of water of crystallization, and the value of x may vary, depending on the preparation conditions and crystal structure.
Ammonium metatungstate crystals are a white or slightly yellow crystalline powder that is soluble in water but insoluble in ethanol. It has a wide range of applications in several fields, such as electronics, metallurgy, aerospace, chemistry and petrochemistry. As catalysts and catalyst precursors, ammonium metatungstate crystals have important roles in petrochemicals, fine chemicals and other fields.
Ammonium metatungstate crystals are also an important raw material for the preparation of high-purity tungsten products and are used in the manufacture of electronic components in the electronics industry. In addition, ammonium metatungstate crystals have applications in scientific research, such as the preparation of new functional materials and the study of the properties of tungsten-based compounds.
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