Properties of Tungstic Acid

Names

IUPAC name   dihydroxy-dioxotungsten

Other names   Orthotungstic acid

CAS Registry Number   7783-03-1

Properties

Chemical formula   H2WO4

Molar mass    249.853 g/mol

Appearance    yellow powder

Density   5.59 g/cm3

Melting point        100 °C (212 °F; 373 K) (decomposes)

Boiling point 1,473 °C (2,683 °F; 1,746 K)

Solubility in water        insoluble

Solubility      soluble in HF, ammonia

 

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

 

 

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