28 Feb 2015

n-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 or apple. It is used as a synthetic fruit flavoring in foods such as candy, ice cream, cheeses, and baked goods.

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

Property Typical Value, Units
Acidity    as Acetic Acid 0.01 wt % max.
Alcohol Content 0.5 wt % max.
Assay 99.5 wt % min.
Autoignition Temperature 407°C (765°F)
Azeotropes
BP 90.2°C (194.4°F)
Wt % Water 28.7 wt %
Blush Resistance @ 80 F (26.7°C) 83% RH
Boiling Point @ 760 mm Hg 124-129°C (252-264°F)
Color Pt-Co 5 max.
Critical Pressure 30.7 ATM
Critical Temperature 306 C
Critical Volume 389 ml/g·mol
Dilution Ratio
Toluene 2.7
VMP Naphtha 1.2
Electrical Resistance >20 Megohms
Empirical Formula C6H12O2
Evaporation Rate
(ether = 1) 12.1
(n-butyl acetate = 1) 1.0
Expansion Coefficient, per °C    @ 20°C 0.00121
Flash Point    Tag Closed Cup 27°C (81°F)
Freezing Point -74°C (-101°F)
Hansen Solubility Parameters
Nonpolar 7.7
Polar 1.8
Hydrogen Bonding 3.1
Total 8.5
Heat of Combustion -783.9 kcal/g·mol
Heat of Vaporization 8723 cal/g·mol
Liquid Heat Capacity    @ 25°C 53.14 cal/(g*mol)(°C)
Liquid Viscosity    @ 20°C 0.7 cP (mPa·s)
Maximum Incremental Reactivity (MIR) 0.89
Molecular Weight 116.16
Nitrocellulose Solubility Active
Refractive Index @ 20°C 1.39
Solubility
in Water, @ 20°C 0.7 wt %
Water in, @ 20°C 1.6 wt %
Specific Gravity    @ 20°C/20°C 0.88
Surface Tension    @ 20°C 25.1 dynes/cm
TLV PPM 1998 150
Vapor Density    (air = 1) 4
Vapor Pressure
@ 20°C 10 mm Hg
@ 55°C 7.4 KPa
Water 0.05 wt % max.
Wt/Vol    @ 20°C 0.88 kg/L (7.35 lb/gal)

Application

Industry Applications
Pharma In mfr of penicillin G and other pharma products
Cosmetics essential solvent in formulations of nail-polish
Coatings As flow property improver in lacquers, paints and coatings

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