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

Catalog Number	PKG Qty.	Price


45-T2786-10G	10 g	$65.50 1/EA	Add To Favorites
45-T2786-50G	50 g	$129.00 1/EA	Add To Favorites

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This image depicts SKU: T2786-10G

Properties
Descriptions
Safety Info.
Basic Data

form	powder
InChI	1S/H4O4Si.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h1-4H;1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
InChI key	ACTPFSYIGLFGLY-UHFFFAOYSA-N
Quality Level	100
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
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.
General description:	Tungstosilicic acid hydrate is widely used as a catalyst in esterification, oxidation, and other chemical reactions.
Packaging:	10, 50 g in poly bottle

Symbol	GHS07
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

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