First of all, ammonium metatungstate [(NH4)6(H2W12O40)]-nH2O is an inorganic compound with the appearance of a white crystalline powder or slightly yellow, and is more soluble in water. This property makes water a natural choice for the preparation of ammonium metatungstate dispersions. Water as a dispersing medium has the advantages of being non-toxic, easy to obtain and environmentally friendly, and ammonium metatungstate can be better dispersed in water to form a stable dispersion.
In addition, besides water, other organic solvents or mixed solvents may be used as the dispersing medium, depending on the characteristics of the desired dispersion and application scenarios. For example, organic solvents or additives that improve the stability, flowability or wettability of the dispersion may be required under certain specific conditions. The selection of these solvents or additives will be based on factors such as their compatibility with ammonium metatungstate, volatility, toxicity, and environmental impact.
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