dioxotungstendiol

• ChemBase ID: 149033
• Molecular Formular: H2O4W
• Molecular Mass: 249.85348
• Monoisotopic Mass: 249.94623954
• SMILES: O[W](=O)(=O)O
• Canonical SMILES: O[W](=O)(=O)O
• InChI: InChI=1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
• InChIKey: CMPGARWFYBADJI-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dioxotungstendiol
• IUPAC Traditional name: tungstic acid
• Synonyms: Tungstic(VI) acid; Tungstic acid; 钨(VI)酸; 钨酸

Database IDs

• CAS Number: 7783-03-1
• EC Number: 231-975-2
• MDL Number: MFCD00011336
• Merck Index: 149818
• PubChem SID: 24890152; 24853375; 24869506; 162243202
• PubChem CID: 1152

CALCULATED PROPERTIES

• Acid pKa: -2.30103
• H Acceptors: 4
• H Donor: 2
• LogD (pH = 5.5): -5.970884
• LogD (pH = 7.4): -6.2965326
• Log P: -1.7752
• Molar Refractivity: 8.015 cm^3
• Polarizability: 10.85687 Å^3
• Polar Surface Area: 74.6 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Apperance: powder; Powder
• Melting Point: 100°C dec.
• Boiling Point: 1473°C
• Density: 5.5; 5.5 g/mL at 25 °C(lit.)
• Refractive Index: 2.24

Safety Information

• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 3
• Risk Statements: 36/37/38
• Safety Statements: 26-37
• TSCA Listed: 是
• GHS Pictograms: GHS07
• GHS Hazard statements: H315-H319-H335
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Product Information

• Purity: ≥99.0% (calcined substance, T); 99%; 99.999% trace metals basis
• Impurities: ≤0.2% insoluble matter in NaOH
• Loss on Drying: ≤8% loss on ignition
• Linear Formula: H2WO4

DETAILS

Sigma Aldrich - 459062

Packaging
5 g in poly bottle

Sigma Aldrich - 223328

Packaging
100, 500 g in poly bottle

Sigma Aldrich - 95420

Packaging
100, 500 g in poly bottle