Acetone (data page)
# Acetone (data page)

This page provides supplementary chemical data on acetone.

## 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.

* Mallinckrodt Baker
* Science Stuff

## Structure and properties

Structure and properties :

| Index of refraction, $n_D$ | 1.3561 |
| - | - |
| Dielectric constant, $ε_r$ | 20.7 $ε_0$ at 25 °C |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility | ? |
| Surface tension | 26.2 dyn/cm at 0° 23.7 dyn/cm at 20 °C |
| Viscosity | 0.4013 mPa·s at 0 °C 0.3311 mPa·s at 20 °C 0.2562 mPa·s at 50 °C |

## Thermodynamic properties

Phase behavior :

| Triple point | 178.5 K (−94.3 °C), ? Pa |
| - | - |
| Critical point | 508 K (235 °C), 48 bar |
| Std enthalpy change of fusion, $Δ_{fus}H^o$ | +5.7 kJ/mol |
| Std entropy change of fusion, $Δ_{fus}S^o$ | +32.3 J/(mol·K) |
| Std enthalpy change of vaporization, $Δ_{vap}H^o$ | +30.3 kJ/mol |
| Std entropy change of vaporization, $Δ_{vap}S^o$ | 95 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, $c_p$ | 96 J/(mol K) |
| Liquid properties ||
| Std enthalpy change of formation, $Δ_fH^o_{liquid}$ | −249.4 kJ/mol |
| Standard molar entropy, $S^o_{liquid}$ | 200.4 J/(mol K) |
| Enthalpy of combustion, $Δ_cH^o$ | –1785.7 kJ/mol |
| Heat capacity, $c_p$ | 125.5 J/(mol K) |
| Gas properties ||
| Std enthalpy change of formation, $Δ_fH^o_{gas}$ | −218.5 kJ/mol |
| Standard molar entropy, $S^o_{gas}$ | 295.35 J/(mol K) |
| Heat capacity, $c_p$ | 75 J/(mol K) |
| van der Waals' constants | a = 1409.4 $L^2$ $kPa/mol^2$ b = 0.0994 liter per mole |

## Vapor pressure of liquid

| P in mm Hg | P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | 45600 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| T in °C | T in °C | –59.4 | –31.1 | –9.4 | 7.7 | 39.5 | 56.5 | 78.6 | 113.0 | 144.5 | 181.0 | 214.5 | — |

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

| Vapor pressure of acetone based on formula, $\scriptstyle P_{mmHg}=10^{7.02447-{\frac {1161.0}{224+T}}}$ from Lange's Handbook of Chemistry, 10th ed. | vapor pressure of acetone (log scale) based on formula, $\scriptstyle \log _{10}P_{mmHg}=7.02447-{\frac {1161.0}{224+T}}$ from Lange's Handbook of Chemistry, 10th ed. |
| - | - |

## Distillation data

See also:

* Carbon tetrachloride (data page)
* Butanone (data page)

Vapor-liquid Equilibrium of Acetone/water P = 760 mmHg :

| BP Temp. °C | % by mole acetone | % by mole acetone |
| - | - | - |
| BP Temp. °C | liquid | vapor |
| 100.00 | 0.0 | 0.0 |
| 87.8 | 1.0 | 33.5 |
| 83.0 | 2.3 | 46.2 |
| 76.5 | 4.1 | 58.5 |
| 75.38 | 5.0 | 63.1 |
| 68.76 | 10.0 | 73.1 |
| 66.2 | 12.0 | 75.6 |
| 63.98 | 20.0 | 79.2 |
| 61.84 | 30.0 | 82.0 |
| 60.73 | 40.0 | 83.4 |
| 59.87 | 50.0 | 84.8 |
| 59.29 | 60.0 | 85.8 |
| 58.52 | 70.0 | 87.4 |
| 57.65 | 80.0 | 89.4 |
| 57.1 | 85.0 | 91.8 |
| 56.65 | 90.0 | 93.8 |
| 56.36 | 95.0 | 96.3 |
| 56.09 | 100.0 | 100.0 |

Vapor-liquid Equilibrium of Acetone/Methanol P = 101.325 kPa :

| BP Temp. °C | % by mole methanol | % by mole methanol |
| - | - | - |
| BP Temp. °C | liquid | vapor |
| 55.67 | 7.0 | 8.2 |
| 55.43 | 13.3 | 14.4 |
| 55.31 | 18.1 | 18.8 |
| 55.24 | 21.7 | 21.8 |
| 55.25 | 22.7 | 22.6 |
| 55.30 | 26.5 | 25.5 |
| 55.39 | 34.0 | 31.1 |
| 55.74 | 40.6 | 35.6 |
| 55.96 | 44.6 | 38.2 |
| 56.15 | 48.1 | 40.6 |
| 56.90 | 59.3 | 48.6 |
| 57.05 | 60.6 | 49.6 |
| 57.29 | 63.1 | 51.5 |
| 57.69 | 67.6 | 55.0 |
| 58.32 | 71.9 | 59.0 |
| 58.49 | 73.7 | 60.8 |
| 58.97 | 77.1 | 64.3 |
| 59.57 | 80.5 | 68.1 |
| 60.41 | 84.9 | 73.5 |
| 61.53 | 90.0 | 80.9 |
| 62.21 | 92.6 | 85.2 |
| 62.79 | 94.7 | 89.0 |
| 63.69 | 97.6 | 94.7 |

Vapor-liquid Equilibrium of Acetone/Ethanol P = 760 mm Hg :

| BP Temp. °C | % by mole acetone | % by mole acetone |
| - | - | - |
| BP Temp. °C | liquid | vapor |
| 78.3 | 0 | 0 |
| 76.4 | 3.3 | 11.1 |
| 74.0 | 7.8 | 21.6 |
| 70.8 | 14.9 | 34.5 |
| 69.1 | 19.5 | 41.0 |
| 65.6 | 31.6 | 53.4 |
| 63.4 | 41.4 | 61.4 |
| 61.3 | 53.2 | 69.7 |
| 59.0 | 69.1 | 79.6 |
| 57.3 | 85.2 | 89.6 |
| 56.1 | 100.0 | 100.0 |

## Spectral data

UV-Vis :

| $λ_{max}$ | 280 nm |
| - | - |
| Extinction coefficient, ε | 12.4 L/(mol·cm) @ 280 nm |
| IR ||
| Major absorption bands | (liquid film) Wave numberTransmittance 3414 $cm^{−1}78%$ 3005 $cm^{−1}66%$ 2966 $cm^{−1}74%$ 2925 $cm^{−1}77%$ 1749 $cm^{−1}52%$ 1715 $cm^{−1}4%$ 1434 $cm^{−1}49%$ 1421 $cm^{−1}47%$ 1363 $cm^{−1}13%$ 1223 $cm^{−1}12%$ 1093 $cm^{−1}68%$ 903 $cm^{−1}81%$ 531 $cm^{−1}36%$ |
| NMR ||
| Proton NMR | $(CDCl_3,$ 300 MHz) δ 2.16 (s, 6H) |
| Carbon-13 NMR | $(CDCl_3,$ 25 MHz) δ 206.6, 30.8 |
| Other NMR data | |
| MS ||
| Masses of main fragments | |
