Ethyl acetate (data page)

This page provides supplementary chemical data on ethyl acetate.

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.

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Structure and properties

Structure and properties
Index of refraction, nD	1.3720
Abbe number	?
Dielectric constant, εr	6.02 ε0 at 25 °C
Bond strength	?
Bond length	?
Bond angle	?
Magnetic susceptibility	?
Surface tension	23.9 dyn/cm at 20 °C
Viscosity[1]	0.5285 mPa·s at 0 °C 0.4546 mPa·s at 20 °C 0.3668 mPa·s at 40 °C

Thermodynamic properties

Phase behavior
Triple point	189.3 K (−83.9 °C), ? Pa
Critical point	530 K (260 °C), 3900 kPa
Std enthalpy change of fusion, ΔfusHo	10.48 kJ/mol (189.3 K)
Std entropy change of fusion, ΔfusSo	55.27 J/(mol·K) (189.3 K)
Std enthalpy change of vaporization, ΔvapHo	31.94 kJ/mol
Std entropy change of vaporization, ΔvapSo	103.35 J/(mol·K)
Solid properties
Std enthalpy change of formation, ΔfHosolid	? kJ/mol
Standard molar entropy, Sosolid	? J/(mol K)
Heat capacity, cp	? J/(mol K)
Liquid properties
Std enthalpy change of formation, ΔfHoliquid	−480 kJ/mol
Standard molar entropy, Soliquid	259.4 J/(mol K)
Heat capacity, cp	170 J/(mol K)
Gas properties
Std enthalpy change of formation, ΔfHogas	−445 kJ/mol
Standard molar entropy, Sogas	363 J/(mol K)
Heat capacity, cp	125.8 J/(mol K) (360 K)
van der Waals' constants[2]	a = 2072.0 L2 kPa/mol2 b = 0.1412 liter per mole

Distillation data

Vapor-liquid Equilibrium for Ethyl Acetate/Water[3] P = 760 mmHg BP Temp. °C  % by mole C4H8O2 liquid vapor 100.0 0.0 0.0 96.5 0.024 10.0 92.9 0.055 20.0 89.5 0.105 30.0 85.9 0.201 40.0 82.1 0.370 50.0 77.5 0.683 60.0 74.3 0.935 65.0 70.5 3.0 70.0 70.4 5.0 70.1 70.4 10.0 70.1 70.4 20.0 70.1 70.4 30.0 70.1 70.4 40.0 70.1 70.4 50.0 70.1 70.4 60.0 70.1 70.4 70.0 70.1 70.7 80.0 70.5 72.2 90.0 75.0 73.5 94.1 80.0 74.5 96.5 85.0 75.5 97.5 90.0 76.3 98.8 95.0 77.2 100.0 100.0

Vapor-liquid Equilibrium for Ethyl Acetate/Acetic acid[3] P = 740 mmHg BP Temp. °C  % by mole C4H8O2 liquid vapor 117.07 0.0 0.0 114.00 4.0 10.7 110.00 9.6 23.0 105.00 17.3 37.7 100.00 25.9 51.9 95.00 36.3 65.4 90.00 48.2 77.7 86.00 61.7 86.3 82.00 76.4 93.4 80.00 84.2 96.1 78.00 92.2 98.3 76.30 100.0 100.0

Vapor-liquid Equilibrium for Ethyl Acetate/Ethanol[3] P = 760 mmHg BP Temp. °C  % by mole C2H6O1 liquid vapor 76.7 2.5 7.0 75.5 8.0 12.6 75.0 10.0 16.4 74.4 13.0 20.0 72.6 24.0 29.5 71.8 36.0 39.8 72.0 56.3 50.7 72.4 65.3 56.0 72.8 71.0 60.0 73.1 73.5 62.7 73.5 77.6 66.5 73.6 78.5 67.5 74.2 83.3 73.5 74.9 87.3 77.3 75.0 87.8 78.3 75.6 90.8 82.3 76.1 93.2 86.8 76.4 94.2 88.0 77.7 98.4 96.5

Spectral data

UV-Vis
λmax	? nm
Extinction coefficient, ε	?
IR
Major absorption bands	2983, 1743, 1374, 1243, 1048 cm−1
NMR
Proton NMR	δ CDCl3 4.12 (2H, q), 2.04 (3H, s), 1.26 (3H, t).
Carbon-13 NMR	δ CDCl3 171.1, 60.4, 21.0, 14.3.
Other NMR data	JH-H (in ethyl), 7.1 Hz.
MS
Masses of main fragments	88.0 (5.1%), 70.0 (9.9%), 61.0 (14.9%), 45.0 (14.7%), 43.0 (100.0%), 29.0 (13.7%)