Ammonium metatungstate (AMT) is a white or light yellow crystalline powder soluble in water. Usually, the solubility of ammonium metatungstate refers to the solubility of AMT in water. The data shows that at 20°C, the solubility of AMT in water is 303.9g (AMT aqueous solution is quite stable), and its solubility in water increases with the increase of temperature.
Solid solubility (represented by the symbol S), which belongs to the physical properties of substances, refers to the mass of solute dissolved when a solid substance reaches saturation in 100g of solvent at a certain temperature. Where not stated, solubility usually refers to the solubility of a substance in water.
The solubility of AMT can be expressed as: S(AMT)=303.9g/100gH2O
Whether a substance dissolves or not, the size of its solubility depends not only on the nature of the substance, but also on external conditions such as temperature, pressure, and solvent type. Solubility is obviously affected by temperature. The solubility of most solids increases with the increase of temperature, such as potassium nitrate. The solubility of a small part of solids is not greatly affected by temperature, such as sodium chloride. Calcium hydroxide
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