What is n-Butanol
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n-Butanol (n-butyl alcohol, 1-butanol; CAS 71-36-3) is a straight-chain primary aliphatic alcohol with the molecular formula C4H9OH and a molecular weight of 74.12 g/mol. It is a colorless, flammable liquid with a characteristic banana-like odor, a boiling point of 117.7 °C, and limited but significant miscibility with water (~7.7 g/100 mL at 20 °C). Industrially it is one of the most important C4 oxygenated solvents and chemical intermediates, used in the manufacture of butyl acrylate and methacrylate esters, glycol ethers, plasticizers (e.g., dibutyl phthalate), amino resins, and as a solvent in coatings, adhesives, and pharmaceuticals. The dominant commercial production route is the oxo process (hydroformylation) of propylene followed by hydrogenation, though the Reppe process and bio-based fermentation routes also exist.
Production Process of n-Butanol
n-Butanol (n-butyl alcohol, 1-butanol; CAS 71-36-3) is a straight-chain primary aliphatic alcohol with the molecular formula C4H9OH and a molecular weight of 74.12 g/mol. It is a colorless, flammable liquid with a characteristic banana-like odor, a boiling point of 117.7 °C, and limited but significant miscibility with water (~7.7 g/100 mL at 20 °C). Industrially it is one of the most important C4 oxygenated solvents and chemical intermediates, used in the manufacture of butyl acrylate and methacrylate esters, glycol ethers, plasticizers (e.g., dibutyl phthalate), amino resins, and as a solvent in coatings, adhesives, and pharmaceuticals. The dominant commercial production route is the oxo process (hydroformylation) of propylene followed by hydrogenation, though the Reppe process and bio-based fermentation routes also exist.


