Silicotungstic acid hydrate

CAS 12027-43-9

Silicotungstic acid is a Keggin-type polyoxometalate: a defined nanoscale cluster built around silicate and twelve tungsten-oxygen octahedra. It combines strong acidity with useful redox chemistry, explaining its use in esterification, oxidation, and related catalysis. It occupies an unusual middle ground between a discrete molecule and a catalytic material.