Acetone - Thermophysical Properties
Comprehensive thermophysical properties of acetone (2-propanone, CH3-CO-CH3) including density, critical properties, heat capacity, viscosity, and other thermal and physical characteristics. Values are provided for liquid acetone at 25°C and 1 bara unless otherwise specified.
| Property | Value | Unit |
|---|---|---|
| Acidity (pKa1) | 20 | |
| Autoignition temperature | 738 | K |
| Autoignition temperature | 465 | °C |
| Autoignition temperature | 869 | °F |
| Boiling Point | 329.2 | K |
| Boiling Point | 56.08 | °C |
| Boiling Point | 132.9 | °F |
| Critical density | 4.70 | mol/dm³ |
| Critical density | 273 | kg/m³ |
| Critical density | 0.530 | slug/ft³ |
| Critical density | 17.0 | lb/ft³ |
| Critical pressure | 4.69 | MPa |
| Critical pressure | 46.9 | bar |
| Critical pressure | 46.3 | atm |
| Critical pressure | 681 | psi |
| Critical temperature | 508.1 | K |
| Critical temperature | 235.0 | °C |
| Critical temperature | 454.9 | °F |
| Critical volume | 213 | cm³/mol |
| Critical volume | 0.00366 | m³/kg |
| Critical volume | 1.89 | ft³/slug |
| Critical volume | 0.0587 | ft³/lb |
| Density | 13507 | mol/m³ |
| Density | 784.5 | kg/m³ |
| Density | 1.522 | slug/ft³ |
| Density | 48.97 | lb/ft³ |
| Flammable (gas and liquid) | yes | |
| Flash point | 256 | K |
| Flash point | -17 | °C |
| Flash point | 1 | °F |
| Gas constant (R) | 143.2 | J/kg·K |
| Gas constant (R) | 0.03977 | Wh/(kg·K) |
| Gas constant (R) | 856.1 | ft·lbf/(slug·°R) |
| Gas constant (R) | 26.61 | ft·lbf/(lb·°R) |
| Gibbs free energy of formation (gas) | -153 | kJ/mol |
| Gibbs free energy of formation (gas) | -2634 | kJ/kg |
| Gibbs free energy of formation (gas) | -1133 | Btu/lb |
| Heat of combustion (gas) | -1821 | kJ/mol |
| Heat of combustion (gas) | -31354 | kJ/kg |
| Heat of combustion (gas) | -13.5 | Btu/lb |
| Heat of combustion (liquid) | -1789 | kJ/mol |
| Heat of combustion (liquid) | -30803 | kJ/kg |
| Heat of combustion (liquid) | -13.2 | Btu/lb |
| Heat of formation (gas) | -218.0 | kJ/mol |
| Heat of formation (gas) | -3753 | kJ/kg |
| Heat of formation (gas) | -1614 | Btu/lb |
| Heat of formation (liquid) | -249 | kJ/mol |
| Heat of formation (liquid) | -4287 | kJ/kg |
| Heat of formation (liquid) | -1843 | Btu/lb |
| Heat of fusion (at -97°C) | 5.7 | kJ/mol |
| Heat of fusion (at -97°C) | 98 | kJ/kg |
| Heat of fusion (at -97°C) | 42.19 | Btu/lb |
| Heat of evaporation | 31.0 | kJ/mol |
| Heat of evaporation | 534 | kJ/kg |
| Heat of evaporation | 229 | Btu/lb |
| Specific Heat capacity, Cp (gas) | 75.0 | J/mol·K |
| Specific Heat capacity, Cp (gas) | 1.29 | kJ/kg·K |
| Specific Heat capacity, Cp (gas) | 0.308 | Btu/(lb·°F) |
| Specific Heat capacity, Cp (liquid) | 124.5 | J/mol·K |
| Specific Heat capacity, Cp (liquid) | 2.14 | kJ/kg·K |
| Specific Heat capacity, Cp (liquid) | 0.512 | Btu/(lb·°F) |
| Specific Heat capacity, Cv (liquid) | 90.0 | J/mol·K |
| Specific Heat capacity, Cv (liquid) | 1.55 | kJ/kg·K |
| Specific Heat capacity, Cv (liquid) | 0.370 | Btu/(lb·°F) |
| Ionization potential | 9.69 | eV |
| log KOW (Octanol/Water Partition Coefficient) | -0.24 | |
| Melting point | 178.25 | K |
| Melting point | -94.9 | °C |
| Melting point | -138.8 | °F |
| Molecular Weight | 58.079 | g/mol |
| Molecular Weight | 0.12804 | lb/mol |
| Solubility in water (at 25°C) | 1000 | mg/ml |
| Solubility in water (at 25°C) | Miscible with water | |
| Sound velocity | 1164 | m/s |
| Sound velocity | 3818 | ft/s |
| Sound velocity | 2607 | mi/h |
| Specific Gravity (gas, relative to air) | 2.0 | |
| Specific Gravity (liquid, relative to water) | 0.79 | |
| Specific Heat Ratio (liquid) - Cp/Cv | 1.38 | |
| Specific Volume | 0.0000740 | m³/mol |
| Specific Volume | 0.00127 | m³/kg |
| Specific Volume | 0.657 | ft³/slug |
| Specific Volume | 0.0204 | ft³/lb |
| Standard molar entropy, S° (gas) | 295 | J/mol·K |
| Standard molar entropy, S° (gas) | 5.08 | kJ/kg·K |
| Standard molar entropy, S° (gas) | 1.21 | Btu/(lb·°F) |
| Surface tension | 23.1 | dynes/cm |
| Surface tension | 0.02308 | N/m |
| Thermal Conductivity | 0.18 | W/m·°C |
| Thermal Conductivity | 0.104002 | Btu/(hr·ft·°F) |
| Triple point pressure | 2.33 ×10⁻⁶ | MPa |
| Triple point pressure | 2.33 ×10⁻⁵ | bar |
| Triple point pressure | 2.30 ×10⁻⁵ | atm |
| Triple point pressure | 3.38 ×10⁻⁴ | psi |
| Triple point temperature | 178.5 | K |
| Triple point temperature | -94.7 | °C |
| Triple point temperature | -138.37 | °F |
| Vapor (saturation) pressure | 0.0308 | MPa |
| Vapor (saturation) pressure | 231.0 | mm Hg |
| Vapor (saturation) pressure | 0.3039 | atm |
| Vapor (saturation) pressure | 4.47 | psi |
| Viscosity, dynamic (absolute) | 0.309 | cP |
| Viscosity, dynamic (absolute) | 207.6 | lbm/(ft·s ×10⁻⁶) |
| Viscosity, dynamic (absolute) | 6.45 | lbf·s/ft² ×10⁻⁶ |
| Viscosity, kinematic | 0.394 | cSt |
| Viscosity, kinematic | 4.2 | ft²/s ×10⁻⁶ |