Dihydrogen Tungstate is a kind of tungsten oxysalt, commonly known as tungstic acid, and its chemical formula is H2WO4. It is also known as hypotungstic acid or tungstic acid dioxide. In the solid state, dihydrotungstic acid is in the form of white crystals or powder. Dihydrotungstic acid is a weakly acidic substance that can be partially dissociated into tungstate ions (WO4^2-) and hydrogen ions (H+) in water. It dissolves in water to produce an acidic solution. In addition, dihydrotungstic acid can also react with alkali to generate the corresponding tungstate. Dihydrotungstic acid is often used as a precursor compound of tungsten in the chemical industry and laboratories. It can be prepared by the reduction reaction of tungstic acid. In the laboratory, dihydrotungstic acid can be used to prepare other tungsten compounds, synthesize catalysts, and act as a catalyst or catalyst precursor in some chemical reactions.
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