What is the form of Ammonium Metatungstate Hydrate?

The morphology of ammonium metatungstate hydrate can be clearly described as follows:

  1. Appearance color:

o Ammonium metatungstate hydrate appears as a white crystalline powder or a slight yellow color, and this information is mentioned in several reference articles, including Reference 1, Reference 2, Reference 3, and Reference 4.

  1. Solubility:

o Ammonium metatungstate hydrate is soluble in water and has a solubility of 0.1 g/mL in water, and the solution appears clear and colorless. This information comes from reference article 2, which describes in detail the solubility behavior of ammonium metatungstate hydrate in water.

  1. Chemical formula and molecular weight:

o Chemical formula: the chemical formula of ammonium metatungstate hydrate can be expressed as (NH₄)₆H₂W₁₂O₄₀-xH₂O, where x denotes the number of water molecules, and this number may vary.

o Molecular weight: the molecular weight of ammonium metatungstate hydrate varies according to different reference articles but is roughly in the range of 2956.30 to 2974.32, depending on the number of water molecules.

  1. Physical Properties:

o Melting point: Ammonium metatungstate hydrate has a melting point of 100°C (dec.), meaning that on reaching this temperature it will begin to decompose rather than melting straight away.

  1. Uses:

o Ammonium metatungstate hydrate has applications in a number of fields, including the manufacture of tungsten metal, alloy steel, fireproof fabrics, etc. It is also used in the ceramics industry and in the manufacture of a variety of petrochemical catalysts and other tungsten compounds (refer to Article 1).

To summarize, ammonium metatungstate hydrate is a white crystalline powder or slightly yellowish chemical substance that is soluble in water, has a specific chemical formula and molecular weight, and has a wide range of applications in several industrial fields.

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