Tungstic acid color will show in different because of the different kinds of tungstic acid, commonly, tungstic acid represents yellow tungstic if there are no special instructions, the yellow powder. In addition, the known tungstic acid also is white tungstic acid and metatungstic acid. While, as the name implies, white tungstic acid is the white solid powder, and metatungstic acid is a kind of colorless crystal powder.
Tungstic acid is a kind of polymer compound, the different ratios of tungsten trioxide and water form the different kinds of tungstic, and thus to appear in variety color.
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