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383341

Sigma-Aldrich

Tungstosilicic acid hydrate

≥99.9% trace metals basis

Synonym(s):

Silicotungstic acid

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About This Item

Linear Formula:
H4[Si(W3O10)4] · xH2O
CAS Number:
Molecular Weight:
2878.17 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥99.9% trace metals basis

form

powder, chunks or granules

composition

Degree of hydration, 25-26

SMILES string

O.O[Si](O)(O)O.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]2(=O)O[W](=O)(=O)O[W](=O)(=O)O2.O=[W]3(=O)O[W](=O)(=O)O[W](=O)(=O)O3.O=[W]4(=O)O[W](=O)(=O)O[W](=O)(=O)O4

InChI

1S/H4O4Si.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h1-4H;1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

InChI key

ACTPFSYIGLFGLY-UHFFFAOYSA-N

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Related Categories

Application

Reactant for:
  • Preparation of silicotungstate butylmethylimidazolium bromide ionic liquid hybrid material
  • Synthesis of SnII-substituted Keggin-type polyoxometalates as photocatalysts
  • Preparation of silicotungstic acid/organically modified silane proton-conducting membranes
  • Preparation of charge transfer compounds with Keggin anions
  • Preparation of catalyst for catalytic liquid-phase oxidation of xylene

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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