11130-20-4

Basic information

• Product Name: SILICOTUNGSTIC ACID
• Synonyms: DODECA-TUNGSTOSILICIC ACID;12-TUNGSTOSILICIC ACID;SILICOTUNGSTIC ACID;TUNGSTOSILICIC ACID
• CAS NO: 11130-20-4
• Molecular Formula: H4O40SiW12
• Molecular Weight: 2878.17
• EINECS: 234-719-8
• Mol File: 11130-20-4.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: SILICOTUNGSTIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: SILICOTUNGSTIC ACID(11130-20-4)
• EPA Substance Registry System: SILICOTUNGSTIC ACID(11130-20-4)

Safety Data

• Hazardous Substances Data: 11130-20-4(Hazardous Substances Data)

Usage

General Description

Silicotungstic acid is a heteropoly acid compound that consists of silicon, tungsten, and oxygen atoms. It is a yellow solid with high water solubility and is commonly used as a catalyst in organic synthesis, particularly in the oxidation of alcohols and aldehydes. It also has antimicrobial properties and is used in the preservation of wood and textiles. Silicotungstic acid is known for its strong acidic properties and is often used as a dehydrating agent and in the production of various organic compounds. It is considered to be relatively stable and non-toxic, making it a versatile chemical in various industrial and research applications.

Related news

Fabrication and comprehensive investigation of physicochemical and electrochemical properties of chitosan-silica supported SILICOTUNGSTIC ACID (cas 11130-20-4) nanocomposite membranes for fuel cell applications07/27/2019

Polymer electrolyte membranes based on organic – inorganic nanocomposites consisting of chitosan and silica supported silicotungstic acid (IHPA) are developed using simple solution casting technique. Compared to pristine chitosan membranes, IHPA incorporated membranes exhibit higher thermal, me...detailed

SILICOTUNGSTIC ACID (cas 11130-20-4) immobilized on lamellar hexagonal boron nitride for oxidative desulfurization of fuel components07/26/2019

Heteropoly acids have attracted increasing attentions in oxidative desulfurization (ODS) field, but the solubility and low surface area hindered their applications. Moreover, bulk silicotungstic acid (HSiW) was less researched, owing to its relative lower activity. Herein, a layered-structure he...detailed

Supported SILICOTUNGSTIC ACID (cas 11130-20-4) on zirconia catalyst for gas phase dehydration of glycerol to acrolein07/25/2019

The gas phase dehydration of glycerol to acrolein over a series of supported silicotungstic acid (HSiW) on zirconia (10HZ, 20HZ, 30HZ and 40HZ) has been investigated. The catalysts were characterized by temperature programmed desorption, nitrogen adsorption–desorption, thermogravimetric analysi...detailed

A novel heterogeneous photocatalyst for Cr (VI) reduction via planting SILICOTUNGSTIC ACID (cas 11130-20-4) on the surface of calcium tantalate07/23/2019

A novel heterogeneous photocatalyst CaxH4-xSi4W12O40/Ca2Ta2O7 was prepared by planting silicotungstic acid on the surface of calcium tantalate. The materials are characterized by X-ray diffraction (XRD), scanning electron microspectroscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier t...detailed

The role of surface properties of SILICOTUNGSTIC ACID (cas 11130-20-4) doped CeO2 for selective catalytic reduction of NOx by NH3: Effect of precipitant07/22/2019

The present work elucidated the precipitants effect of pure CeO2 on the activity of silicotungstic acid supported on CeO2 catalysts toward NOx reduction. The results implied that the silicotungstic acid doped CeO2 prepared by the NH3·H2O precipitant showed the best SCR performance and nearly 10...detailed

SILICOTUNGSTIC ACID (cas 11130-20-4) (H4SiW12O40): An efficient Keggin heteropoly acid catalyst for the synthesis of oxindole derivatives07/20/2019

Condensation of various isatins with heteroaromatics (indoles and pyrrole) has been carried out in the presence of catalytic amount of silicotungstic acid (STA) at room temperature to form their corresponding 3,3-bis(indolyl)- and 3,3-bis(2-pyrrolyl)oxindoles. The mechanistic aspects of the reac...detailed

Vibrational and photoluminescence properties of polydiphenylamine doped with SILICOTUNGSTIC ACID (cas 11130-20-4) heteropolyanions and their composites with reduced graphene oxide07/21/2019

In this work, the influence of silicotungstic acid concentration on the diphenylamine (DPA) electropolymerization in the absence and the presence of reduced graphene oxide (RGO) is studied. The optical properties of the composites based on polydiphenylamine (PDPA) doped with the H4SiW12O40 heter...detailed

Mechanisms study of SILICOTUNGSTIC ACID (cas 11130-20-4) modified CeO2 catalyst for selective catalytic reduction of NOx with NH3: Effect of pH values07/19/2019

A series of silicotungstic acid modified CeO2 (SC-x, x represents the pH value of solution that is used for the preparation of catalysts) were prepared for the selective catalytic reduction (SCR) of NOx with NH3. SC-9 showed the best catalytic activity among the samples. The monodentate nitrate,...detailed

Rapid thermal-acid hydrolysis of spiramycin by SILICOTUNGSTIC ACID (cas 11130-20-4) under microwave irradiation07/18/2019

Spiramycin is a widely used macrolide antibiotic and exists at high concentration in production wastewater. A thermal-acid hydrolytic pretreatment using silicotungstic acid (STA) under microwave (MW) irradiation was suggested to mitigate spiramycin from production wastewater. Positive correlatio...detailed