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| 2-Butanol | |
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| IUPAC name | Butan-2-ol |
| Other names | 2-Butanol sec-Butanol sec-Butyl alcohol |
| Identifiers | |
| CAS number | 78-92-2] (+): [4221-99-2] (-): [14898-79-4 |
| SMILES |
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| Properties | |
| Molecular formula | C4H10O |
| Molar mass | 74.12 g/mol |
| Density | 0.808 g/cm³ at 20 °C |
| Melting point |
-114.7 °C |
| Boiling point |
94 °C |
| Hazards | |
| NFPA 704 |
 3
1
0
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| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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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.
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Stereoisomers
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 racemic mixture.
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Applications
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.
Manufacture
2-Butanol is manufactured industrially by the hydration of 1-butene or 2-butene:
- C4H8 + H2O → C4H10O
References
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This article's citation style may be unclear. The references used may be clearer with a different or consistent style of citation, footnoting, or external linking. (September 2007) |
- Merck Index, 11th Edition, 1541
External links
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