title: Ethyl acetate (data page)
text: # 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.
  
  * Science Stuff
  * Baker
  * Fisher
  * Eastman
  
  ## Structure and properties
  
  Structure and properties :
  
  | Index of refraction, $n_D$ | 1.3720 |
  | - | - |
  | Abbe number | ? |
  | Dielectric constant, $ε_r$ | 6.02 $ε_0$ at 25 °C |
  | Bond strength | ? |
  | Bond length | ? |
  | Bond angle | ? |
  | Magnetic susceptibility | ? |
  | Surface tension | 23.9 dyn/cm at 20 °C |
  | Viscosity | 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, $Δ_{fus}H^o$ | 10.48 kJ/mol (189.3 K) |
  | Std entropy change of fusion, $Δ_{fus}S^o$ | 55.27 J/(mol·K) (189.3 K) |
  | Std enthalpy change of vaporization, $Δ_{vap}H^o$ | 31.94 kJ/mol |
  | Std entropy change of vaporization, $Δ_{vap}S^o$ | 103.35 J/(mol·K) |
  | Solid properties ||
  | Std enthalpy change of formation, $Δ_fH^o_{solid}$ | ? kJ/mol |
  | Standard molar entropy, $S^o_{solid}$ | ? J/(mol K) |
  | Heat capacity, $c_p$ | ? J/(mol K) |
  | Liquid properties ||
  | Std enthalpy change of formation, $Δ_fH^o_{liquid}$ | −480 kJ/mol |
  | Standard molar entropy, $S^o_{liquid}$ | 259.4 J/(mol K) |
  | Heat capacity, $c_p$ | 170 J/(mol K) |
  | Gas properties ||
  | Std enthalpy change of formation, $Δ_fH^o_{gas}$ | −445 kJ/mol |
  | Standard molar entropy, $S^o_{gas}$ | 363 J/(mol K) |
  | Heat capacity, $c_p$ | 125.8 J/(mol K) (360 K) |
  | van der Waals' constants | a = 2072.0 $L^2$ $kPa/mol^2$ b = 0.1412 liter per mole |
  
  ## Distillation data
  
  Vapor-liquid Equilibrium for Ethyl Acetate/Water P = 760 mmHg :
  
  | BP Temp. °C | % by mole $C_4H_8O_2$ | % by mole $C_4H_8O_2$ |
  | - | - | - |
  | BP Temp. °C | 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 P = 740 mmHg :
  
  | BP Temp. °C | % by mole $C_4H_8O_2$ | % by mole $C_4H_8O_2$ |
  | - | - | - |
  | BP Temp. °C | 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 P = 760 mmHg :
  
  | BP Temp. °C | % by mole $C_4H_8O_2$ | % by mole $C_4H_8O_2$ |
  | - | - | - |
  | BP Temp. °C | 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 :
  
  | $λ_{max}$ | ? nm |
  | - | - |
  | Extinction coefficient, ε | ? |
  | IR ||
  | Major absorption bands | 2983, 1743, 1374, 1243, 1048 $cm^{−1}$ |
  | NMR ||
  | Proton NMR | δ $CDCl_3$ 4.12 (2H, q), 2.04 (3H, s), 1.26 (3H, t). |
  | Carbon-13 NMR | δ $CDCl_3$ 171.1, 60.4, 21.0, 14.3. |
  | Other NMR data | $J_{H-H}$ (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%) |
  