Title: Tungstic(VI) Acid

CAS Registry Number: 7783-03-1

Molecular Formula: H2O4W

Molecular Weight: 249.85

Percent Composition: H 0.81%, O 25.61%, W 73.58%

Line Formula: H2WO4

Literature References: Prepn: Morley, J. Chem. Soc. 1930, 1990.

Properties: Yellow or greenish-yellow powder. Insol in water and acid except hydrofluoric acid. Slowly sol in solns of caustic alkalies. When freshly pptd from a soluble tungstate it contains 1 mol H2O, and is appreciably sol in water.