# 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, 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$_f$H$^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$_f$H$^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$_f$H$^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$_4$H$_8$O$_2$ | % by mole C$_4$H$_8$O$_2$ |
| 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$_4$H$_8$O$_2$ | % by mole C$_4$H$_8$O$_2$ |
| 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$_2$H$_6$O$_1$ | % by mole C$_2$H$_6$O$_1$ |
| 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%) |