Ethyl acetate

Ethyl acetate (systematically ethyl ethanoate, commonly abbreviated EtOAc, ETAC or EA) is the organic compound with the formula CH3CO2CH2CH3, simplified to C4H8O2. This colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, and in the decaffeination process of tea and coffee. Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent.

Ethyl ethanoate
Names
Preferred IUPAC name
Ethyl acetate
Systematic IUPAC name
Ethyl ethanoate
Other names
  • Acetic ester
  • Acetic ether
  • Ethyl ester of acetic acid
Identifiers
3D model (JSmol)
506104
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.005.001
E number E1504 (additional chemicals)
26306
KEGG
PubChem CID
RTECS number
  • AH5425000
UNII
  • InChI=1S/C4H8O2/c1-3-6-4(2)5/h3H2,1-2H3 Y
    Key: XEKOWRVHYACXOJ-UHFFFAOYSA-N Y
  • InChI=1/C3H8O2/c1-3-6-4(2)5/h3H2,1-2H3
    Key: XEKOWRVHYACXOJ-UHFFFAOYAD
SMILES
  • O=C(OCC)C
Properties
C4H8O2
Molar mass 88.106 g·mol−1
Appearance Colorless liquid
Odor nail polish-like, fruity
Density 0.902 g/cm3
Melting point −83.6 °C (−118.5 °F; 189.6 K)
Boiling point 77.1 °C (170.8 °F; 350.2 K)
8.3 g/100 mL (at 20 °C)
Solubility in ethanol, acetone, diethyl ether, benzene Miscible
log P 0.71
Vapor pressure 73 mmHg (9.7 kPa) at 20 °C
Acidity (pKa) 25
Magnetic susceptibility (χ)
−54.10×10−6 cm3/mol
Refractive index (nD)
1.3720
Viscosity 426 μPa·s (0.426 cP) at 25 °C
Structure
1.78 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
  • Flammable (F),
  • Irritant (Xi)
GHS labelling:
Danger
H225, H319, H336
P210, P233, P240, P305+P351+P338, P403+P235
NFPA 704 (fire diamond)
2
3
0
Flash point −4 °C (25 °F; 269 K)
Explosive limits 2.0–11.5%
Lethal dose or concentration (LD, LC):
LD50 (median dose)
11.3 g/kg, rat
LC50 (median concentration)
16,000 ppm (rat, 6 h)
12,295 ppm (mouse, 2 h)
1600 ppm (rat, 8 h)
LCLo (lowest published)
21 ppm (guinea pig, 1 h)
12,330 ppm (mouse, 3 h)
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 400 ppm (1400 mg/m3)
REL (Recommended)
TWA 400 ppm (1400 mg/m3)
IDLH (Immediate danger)
2000 ppm
Related compounds
Related compounds
Supplementary data page
Ethyl acetate (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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