Tetra ethyl ortho silicate – COUPSYL® TEOS
Tetra ethyl ortho silicate (TEOS) is a colorless, flammable, and toxic liquid with low viscosity and a pungent ethanol-like odor. It belongs to the alkoxy silane family with four ethoxy groups, dissolves in alcohols and common solvents, and hydrolyzes with moisture to form silica powder and ethanol. TEOS is a basic chemical widely used across pharmaceutical, petrochemical, oil and gas, foundry, and other industries


