Tungstic Acid

Tungstic Acid

Used in analytical chemistry and as a precursor for other tungsten compounds. Used in the production of catalysts and pigments.

• CAS Number: 7783 - 03 - 1
• Formula: H₂WO₄
• Appearance: Yellow powder
• Solubility: Insoluble in water, soluble in alkalis and ammonia
• Assay Purity (% ): ≥99.0% (as WO₃)
• W Content (% ): ~72.0%
• WO₃ (% ): ~90.0%
• Insoluble (% ): ≤0.1%
• Iron (Fe) (% ): ≤0.005%
• Lead (Pb) (% ): ≤0.002%
• pH (slurry): 3.0–5.0
• Chloride (Cl⁻) (% ): ≤0.01%
• Sulphate (SO₄²⁻) (% ): ≤0.02%
• Nitrogen (N) (% ): ≤0.005%
• Alkalinity (% ): Not applicable (acidic)