Yellow tungstic acid is the most common type of tungstic acid. Under normal circumstances, if there is no special statement in the technical documents or contracts of China Tungsten Intelligent Manufacturing, the tungstic acid mentioned is yellow tungstic acid. Yellow tungstic acid is a light orange-yellow powder, and its composition varies slightly with different preparation conditions. Yellow tungstic acid is a chemical molecule with a melting point of 1473°C and a density of 5.5g/cm3. It is a bright light yellow crystal or powder. Yellow tungstic acid is orange-yellow crystal, insoluble in water, sulfuric acid and nitric acid, only slightly soluble in hydrochloric acid. When yellow tungstic acid is WO3·H2O, the density is 5.5g/cm3, and it will be dehydrated at 100°C; it is insoluble in water, and it will be dehydrated at 500°C to generate tungsten trioxide.
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