tetrakis(hexaoxocyclotritungstoxane) silicic acid hydrate

• ChemBase ID: 145933
• Molecular Formular: H6O41SiW12
• Molecular Mass: 2896.18854
• Monoisotopic Mass: 2897.22654814
• SMILES: O.O[Si](O)(O)O.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1
• Canonical SMILES: O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O[Si](O)(O)O.O
• InChI: InChI=1S/H4O4Si.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h1-4H;1H2
• InChIKey: ACTPFSYIGLFGLY-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: tetrakis(hexaoxocyclotritungstoxane) silicic acid hydrate
• IUPAC Traditional name: silicic acid tetrakis(tungsten oxide) hydrate
• Synonyms: Silicotungstic acid; Tungstosilicic acid hydrate; 硅钨酸; 钨硅酸 水合物

Database IDs

• CAS Number: 12027-43-9
• EC Number: 234-719-8
• MDL Number: MFCD00150392
• PubChem SID: 162240133; 24863956; 24900077; 24890150
• PubChem CID: 71307034

CALCULATED PROPERTIES

• H Acceptors: 6
• H Donor: 0
• LogD (pH = 5.5): -1.2948
• LogD (pH = 7.4): -1.2948
• Log P: -1.2948
• Molar Refractivity: 12.708 cm^3
• Polarizability: 29.354631 Å^3
• Polar Surface Area: 130.11 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: false

PROPERTIES

Safety Information

• European Hazard Symbols: Irritant (Xi)
• German water hazard class: 3
• Risk Statements: 36/37/38
• Safety Statements: 26; 26-36
• GHS Pictograms: GHS07
• GHS Signal Word: Warning
• GHS Hazard statements: H315-H319-H335
• GHS Precautionary statements: P261-P305 + P351 + P338
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves

Product Information

• Purity: ≥99.9% trace metals basis
• Grade: purum p.a.
• Compostion: Degree of hydration, 25-26
• Cation Traces: Ca: ≤200 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤200 mg/kg; Na: ≤3000 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤200 mg/kg; sulfate (SO42-): ≤100 mg/kg
• Loss on Drying: ≤20% loss on ignition
• Linear Formula: H4[Si(W3O10)4] · xH2O

DETAILS

Sigma Aldrich - T2786

Application
Reactant for:
• Preparation of silicotungstate butylmethylimidazolium bromide ionic liquid hybrid material1
• Synthesis of SnII-substituted Keggin-type polyoxometalates as photocatalysts2
• Preparation of silicotungstic acid/organically modified silane proton-conducting membranes3
• Preparation of charge transfer compounds with Keggin anions4
• Preparation of catalyst for catalytic liquid-phase oxidation of xylene5

Sigma Aldrich - 95395

Application
Reactant for:
• Preparation of silicotungstate butylmethylimidazolium bromide ionic liquid hybrid material1
• Synthesis of SnII-substituted Keggin-type polyoxometalates as photocatalysts2
• Preparation of silicotungstic acid/organically modified silane proton-conducting membranes3
• Preparation of charge transfer compounds with Keggin anions4
• Preparation of catalyst for catalytic liquid-phase oxidation of xylene5

Sigma Aldrich - 383341

Packaging
50 g in glass bottle
Application
Reactant for:
• Preparation of silicotungstate butylmethylimidazolium bromide ionic liquid hybrid material1
• Synthesis of SnII-substituted Keggin-type polyoxometalates as photocatalysts2
• Preparation of silicotungstic acid/organically modified silane proton-conducting membranes3
• Preparation of charge transfer compounds with Keggin anions4
• Preparation of catalyst for catalytic liquid-phase oxidation of xylene5