Foreign name Tungstic acid
English name: Tungstic(VI) Acid
Chemical formula H2WO4
Composition: H 0.81%, O 25.61%, W 73.58%
Molecular weight 249.86
CAS accession number in International Journal of Chemical Abstracts 7783-03-1
EINECS accession number 231-975-2
Melting point 100°C
Boiling point 1473°C
Water solubility Soluble in hydrofluoric acid, slowly soluble in caustic alkali solution, insoluble in water and other acids
Density 5.5
Appearance can exist in many states. Yellow powder or crystal, etc.
Flash point 1473 ℃
Introduction
Name: Tungstic Acid
Product use: Mainly used to make metal tungsten, tungsten wire, hard alloy, tungstate; also used as printing and dyeing auxiliaries
CAS NUMBER: 7783-03-1
Physical and chemical properties: yellow powder
Relative density: 5.5
Boiling point: 1473°C, lose 1 molecule of water when heated to 100°C to become tungstic anhydride
Solubility properties: slightly soluble in hot water, soluble in alkali, hydrofluoric acid and ammonia water, almost insoluble in acid
Molecular Weight: 249.86 [1]
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