2-Butanol

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2-Butanol
2-Butanol
2-Butanol
Chemical name 2-Butanol
Other names Butan-2-ol
sec-Butanol
sec-Butyl alcohol
Chemical formula C4H10O
Molecular mass 74.12 g/mol
CAS number [78-92-2]
(+): [4221-99-2]
(-): [14898-79-4]
Density 0.808 g/cm³ at 20 °C
Melting point -114.7 °C
Boiling point 99.5 °C
SMILES CC(O)CC
NFPA 704

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Disclaimer and references

2-Butanol, or sec-butanol, is a chemical compound with formula C4H10O. This secondary alcohol is a flammable, colorless liquid that is soluble in 12 parts water and completely miscible with polar organic solvent such as ethers and other alcohols. 2-Butanol is chiral and thus can be obtained as either of two stereoisomers designated as (R)-(−)-2-butanol and (S)-(+)-2-butanol. It is normally found as an equal mixture of the two stereoisomers, a so-called racemic mixture.

2-Butanol is used as a solvent, as an intermediate in the manufacture of other chemicals (such as butanone), in industrial cleaners, and in paint removers. Many of the volatile esters of 2-butanol have pleasant aromas and are used as perfumes or in artificial flavors.

2-Butanol is manufactured industrially by the hydration of 2-butene:

C4H8 + H2O → C4H10O

[edit] Reference

  • Merck Index, 11th Edition, 1541

[edit] External links