It often replaces n-butanol as a solvent for coatings and medicines. Used as an internal combustion engine fuel additive (to prevent carburetor freezing) and an antiknock agent. As an intermediate in organic synthesis and an alkylation raw material for the production of tert-butyl compounds, it can produce methyl methacrylate, tert-butylamine, etc. for the synthesis of drugs and fragrances. Dehydration of tert-butanol can produce isobutene with a purity of 99.0-99.9%. It is used as a solvent for industrial detergents, pharmaceutical extractants, insecticides, solvents for waxes, cellulose esters, solvents for plastics and paints, and also used in the manufacture of denatured alcohol, spices, fruit essence, isobutylene, etc. Solvents and chromatographic reference materials for molecular weight determination.