Silicotungstic acid

Silicotungstic acid (CAS 12027-38-2), also known as 12-tungstosilicic acid, is a heteropolyacid used industrially as a strong acid catalyst and analytical reagent.

Where is Silicotungstic acid used?

• Pharmaceutical manufacturing: precipitating agent for alkaloid identification and quantification in quality control testing
• Catalysis: acid-catalyzed esterification, alkylation and condensation reactions with a recoverable solid acid
• Research and fine chemicals: catalyst precursor for supported heteropolyacid systems on silica or alumina carriers
• Electrochemical and materials research: proton-conducting component in membrane and electrode formulations
• Its high proton activity and thermal stability suit acid-catalyzed synthesis and precipitation-based analytical workflows.

Commercial specifications

• Purity from technical quality up to ACS reagent grade
• Packaging in laboratory-scale or bulk quantities