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Butyl acetate, also known as butyl ethanoate, is an organic compound commonly used as a solvent in the production of lacquers and other products. It is a colorless flammable liquid. Butyl acetate is found in many types of fruit, where along with other chemicals it imparts characteristic flavors and has a sweet smell of banana. It is used as a synthetic fruit flavoring in foods such as candy, ice cream, cheeses, and baked goods.

The other three isomers of n-butyl acetate are: isobutyl acetate, tert-butyl acetate, and sec-butyl acetate.

 

Production

Butyl acetates are commonly manufactured by the Fischer esterification of a butanol isomer and acetic acid with the presence of catalytic sulfuric acid under reflux conditions.

       

CH3CH2CH2CH2OH + CH3COOH CH3COOCH2CH2CH2CH3 + H2O

 

Uses

Butyl acetate is a colorless, flammable liquid that is often used in organic chemistry laboratories as a solvent. Industrially, butyl acetate is used in the manufacture of lacquers, artificial leather, photographic films, plastics, and safety glass. It has a pleasant, fruity odor (rather like pears), and it is used in the flavoring/fragrance industry as an artificial flavoring. At high concentrations (200 ppm+) it is toxic.

Butyl acetate dissolves relatively easy in water. The volatility is reduced in water solution. It has a strong fruity smell and the taste is similar to banana.

This substance belongs to the group of esters, which normally is synthesized by a reaction between an organic acid and an alcohol, in this case acetic acid and butyl alcohol.

Butyl acetate occurs in a large amount of products. It is used as a solvent in many types of products. The largest use is in paint & lacquer. Other large uses are in adhesive and hardener. Butyl acetate is also used in production of medicals as a solvent/extraction agent. Minor uses occur also in anticorrosive agents, sealing agents, putty, cleaning agents and car care products. In paints, butyl acetate replaces older types of organic solvents that are associated with health and environmental problems.
 

 

Properties

Butyl Acetete normal (n-) iso (iso-)
Molecular Formula C6H12O2 C6H12O2
Molar Mass 116.16 g/mol 116.16 g/mol
Appearance colorless liquid colorless liquid
Density 0.88 g/cm³, liquid 0.87 g/cm³, liquid
Flash Point 22 °C 18 °C
Melting Point −77 °C −99 °C
Boiling Point 127 °C 116-118 °C
Ignition Temp. 370 °C 510 °C
Vapour Pressure ~ 13 hPa (20 °C) 17 hPa (20 °C)
Solubility in Water 7 g/L (20 °C) 7 g/L (20 °C)
Refractive Index (nD) 1.394 1.3877
n-Butyl Acetate    
  Specification   MSDS      
       
   
iso-Butyl Acetate
 

Identifiers

Butyl Acetate normal (n-) iso (-iso)
CAS number 123-86-4 110-19-0
PubChem 31272 8038
ChemSpider 29012 7747
UNII 464P5N1905 7CR47FO6LF
KEGG C12304  
ChEBI CHEBI:31328 CHEBI:50569
ChEMBL CHEMBL284391 CHEMBL46999
Jmol-3D images 3D image 3D image
IRAN Cod

0834610130540004

GS1 Cod 6261305400047
  Specification     MSDS    
 

   

Butyl Acetate

IUPAC name

Bthyl acetate

Systematic name

Butyl ethanoate

Other names

Butyl ester Acetic ester

   
       
   

             Hazards

Butyl Acetate normal (-n) iso (-iso)
MSDS MSDS(PDF) MSDS(PDF)
Main Hazards Flammable Flammable
NFPA

Flash Point 22 °C 18 °C
   
       
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