CAS 7783-03-1

Tungstic acid (H2WO4)

Description:

Tungstic acid, with the chemical formula H₂WO₄ and CAS number 7783-03-1, is an inorganic compound that contains tungsten in its highest oxidation state. It typically appears as a white or yellowish solid and is soluble in water, forming a colloidal solution. Tungstic acid is known for its acidic properties, exhibiting a pH lower than 7 in solution, and it can act as a weak acid. It is primarily used in various applications, including catalysis, as a precursor for tungsten compounds, and in the production of tungsten-based materials. The compound is also utilized in analytical chemistry for the precipitation of certain metal ions. Tungstic acid can be produced through the oxidation of tungsten trioxide (WO₃) with water or through the reaction of tungsten salts with strong acids. Due to its chemical properties, it is important to handle tungstic acid with care, as it can be hazardous in concentrated forms. Overall, tungstic acid plays a significant role in both industrial and laboratory settings.

Formula: HO₄W

InChI: InChI=1S/4O.W/q;;;;-2/p+2

InChI key: InChIKey=BASIUPHYXUKEPE-UHFFFAOYSA-P

SMILES: [W-2](=O)(=O)(=O)=O.[H+]

Synonyms:

• Dihydrogen Wolframate
• Dihydrogen tetraoxotungstate(2-)
• Dihydrogenwolframat
• Tungstate (WO42-), hydrogen (1:2), (T-4)-
• Tungstate (WO₄^2-), dihydrogen, (T-4)-
• Tungstate (WO₄^2-), hydrogen (1:2), (T-4)-
• Tungstate de dihydrogene
• Tungsten acid (H2WO4)
• Tungsten acid (H₂WO₄)
• Tungsten hydroxide oxide (W(OH)2O2)
• Tungsten hydroxide oxide (W(OH)₂O₂)
• Tungsten hydroxide oxide (W(OH)₂O₂), (T-4)-
• Tungstic acid
• Tungstic acid (H2WO4)
• Tungstic acid (H₂WO₄)
• Tungstic(VI) acid
• Volframato De Dihidrogeno
• dihydrogen tungstate (H2WO4)
• dihydrogen tungstate (H₂WO₄)

Tungstic(VI) acid

CAS: 7783-03-1

Applied as flavoring agent and fragrance. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a

Formula: H₂O₄W

Molecular weight: 249.85

Ref: 02-082118

Tungstic acid, 99%

CAS: 7783-03-1

Tungstic acid, 99%

Formula: H₂WO₄

Purity: 99%

Color and Shape: yellow pwdr.

Molecular weight: 249.86

Ref: 08-93-7410

Tungstic acid, 99+%

CAS: 7783-03-1

Formula: H₂WO₄

Purity: ≥ 99.0%

Color and Shape: Yellow to orange powder

Molecular weight: 249.86

Ref: 7W-GX7349

Tungstic Acid pure, 98%

CAS: 7783-03-1

Formula: H₂WO₄

Purity: min. 98%

Color and Shape: Yellow, Powder

Molecular weight: 249.87

Ref: SR-17472

Tungstic Acid extrapure AR, 99%

CAS: 7783-03-1

Formula: H₂WO₄

Purity: min. 99%

Color and Shape: Yellow, Crystalline powder, Clear

Molecular weight: 249.87

Ref: SR-55401

Tungstic(VI) acid

CAS: 7783-03-1

Formula: H₄O₄W

Purity: 95.0%

Color and Shape: Solid

Molecular weight: 251.87

Ref: 10-F095122

Tungstic Acid

Controlled Product

CAS: 7783-03-1

Applications Tungstic Acid is used as a starting material in the synthesis of polynanocomposite material and polycrystalline ceramics.
References Anil K. et al.: Int. J. App. Cer. Tech., 14, 191 (2017);

Formula: H₂O₄W

Color and Shape: Neat

Molecular weight: 249.85

Ref: TR-T897270

Tungstate (WO42-), dihydrogen, (T-4)-

CAS: 7783-03-1

Formula: H₂O₄W

Purity: 99.9%

Color and Shape: Solid

Molecular weight: 249.8535

Ref: IN-DA00ICW3