Description: n-Butanol is a four-carbon straight-chain primary alcohol, mainly produced by propylene oxo synthesis or fermentation. It is a medium volatile organic solvent with good solubility and reactivity. It is widely used in the production of butyl esters, coatings, inks, adhesives, plasticizers, and as a solvent for resins and organic synthesis. It is flammable, irritating to eyes, skin and respiratory tract, and its vapor can form explosive mixtures with air.