Tungstosilicic acid hydrate
SIGMA/T2786
Synonym: Silicotungstic acid
CAS Number: 12027-43-9
Empirical Formula (Hill Notation): H4O40SiW12 · xH2O
Molecular Weight: 2878.17 (anhydrous basis)
EC Number: 234-719-8
MDL Number: MFCD00150392
Linear Formula: H4[Si(W3O10)4] · xH2O
Product Type: Chemical
form | powder |
InChI | 1S/H4O4Si.H2O.36O.12W/c1- |
InChI key | ACTPFSYIGLFGLY-UHFFFAOYSA |
Quality Level | 100 ![]() |
SMILES string | O.O[Si](O)(O)O.O=[W]1(=O) |
solubility | water: 100 mg/mL, clear, colorless |
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 |
Application: | Tungstosilicic acid can be used as a reactant for: • Preparation of silicotungstate butylmethylimidazolium bromide ionic liquid hybrid material. • Synthesis of Sn(II)-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. |
Packaging: | 10, 50 g in poly bottle |
Symbol | ![]() |
Signal word | Warning |
Hazard statements | H315 - H319 - H335 |
Precautionary statements | P302 + P352 - P305 + P351 + P338 |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-36 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
UNSPSC | 12352301 |