Ethyl acetate (data page)

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This page provides supplementary chemical data on ethyl acetate.

Contents

[edit] 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 such as SIRI or from one of the sites listed above, and follow its directions.

[edit] Structure and properties

Structure and properties
Index of refraction, nD 1.370
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

[edit] 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		 35.1 kJ/mol
Std entropy change
of vaporization, ΔvapSo		 100.21 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

[edit] Vapor pressure of liquid

P in mm Hg 1 10 40 100 400 760 1520 3800 7600 15200 30400 45600
T in °C –43.4 –13.5 9.1 27.0 59.0 77.1 100.6 136.6 169.7 209.5  —  —

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

log10 of Ethyl Acetate vapor pressure. Uses formula: obtained from Lange's Handbook of Chemistry, 10th ed.
log10 of Ethyl Acetate vapor pressure. Uses formula: \scriptstyle \log_{10} P_{mmHg} = 7.09808 - \frac {1238.71} {217.0+T} obtained from Lange's Handbook of Chemistry, 10th ed.


[edit] 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
C4H8O2
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

[edit] 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%)

[edit] References

  1. ^ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
  2. ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524
  3. ^ a b c Binary Vapor-Liquid Equilibrium Data (Queriable database). Chemical Engineering Research Information Center. Retrieved on 6 May 2007.

Except where noted otherwise, data relate to standard ambient temperature and pressure.

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