2-Butanol
2-Butanol, also known as sec-butanol or butan-2-ol, is a secondary alcohol with the molecular formula CH3CH(OH)CH2CH3. It is a chiral molecule, meaning it exists as two enantiomers, (R)-2-butanol and (S)-2-butanol, which are non-superimposable mirror images of each other. It is a flammable, colorless liquid with a characteristic alcohol odor.
2-Butanol is miscible with common organic solvents such as ethanol and ether. It is sparingly soluble in water. It is typically produced industrially by the hydration of 1-butene or 2-butene, or by the reduction of butanone (methyl ethyl ketone).
2-Butanol is used as a solvent, an intermediate in chemical synthesis, and as a component in paint removers and cleaning products. It can be dehydrated to produce butenes, which are important feedstocks in the petrochemical industry. It is also used in the production of methyl ethyl ketone (MEK).
Exposure to 2-butanol can cause irritation to the skin, eyes, and respiratory tract. Ingestion or inhalation of large quantities may lead to central nervous system depression.