sec-Butyl acetate

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sec-Butyl acetate
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Template:Longitem Template:Chembox Elements/molecular formula
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Appearance Clear, liquid
Odor Fruity[2]
Density 0.87Script error: No such module "String".g/cm3, liquid
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Vapor pressure 10Script error: No such module "String".mmHg[2]
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Explosive limits 1.7–9.8%[2]

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sec-Butyl acetate, or s-butyl acetate, is an ester commonly used as a solvent in lacquers and enamels, where it is used in the production of acyclic polymers, vinyl resins, and nitrocellulose.[3] It is a clear flammable liquid with a sweet smell.[4]

sec-Butyl acetate has three isomers that are also acetate esters: n-butyl acetate, isobutyl acetate, and tert-butyl acetate.

History

The first method of production of sec-butyl acetate was the esterification of sec-butanol and acetic anhydride[5] It was experimentally determined and published in 1946 by Rolf Altschul.[6]

Toxicology

The LD50 for rats is 13Script error: No such module "String".g/kg.[7] Exposure in humans to significant quantities of sec-butyl acetate can cause irritation to the eyes, mouth, throat, nose, and skin.[8] Ingestion and inhalation of sec-butyl acetate can cause central nervous system depression producing symptoms of dizziness and disorientation.[8]

Nomenclature

sec-Butyl acetate is chiral. It has one stereocenter, carbon 2 in the sec-butyl group. The names of the two enantiomers are:

  • [(2S)-butan-2-yl] acetate, (+)-sec-butyl acetate
  • [(2R)-butan-2-yl] acetate, (−)-sec-butyl acetate

References

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  2. a b c d e f Script error: No such module "citation/CS1".
  3. "Acetic acid", Ullman's encyclopedia of industrial chemistry (2003, 6th ed., Vol. 1, pp. 170–171). Weinheim, Germany: Wiley-VCH.
  4. Howard, H. H. (1993). sec-Butyl acetate. In Handbook of environmental fate and exposure data for organic chemists (Vol. 5, pp. 60–65). Chelsea, MI: Lewis.
  5. Altschul, R. (1946). "The Reversible Esterification of Carboxylic Acids with Isobutene and Trimethylethylene. Quantitative Studies and Synthetic Applications", Journal of the American Chemical Society, 68(12), 2605–2609.
  6. Template:Cite Merck Index
  7. Canadian Center for Occupational Health and Safety. (1996). 2-Butyl acetate. Retrieved February 20, 2009, from CHEMINFO database.
  8. a b International Programme on Chemical Safety. (2003). sec-Butyl acetate. Retrieved February 20, 2009, from INCHEM database.

External links