Properties of heptane
Thermophysical properties for heptane (CAS: 142-82-5). Use the selector below to view properties in different unit systems.
Calculation Conditions
The following state-dependent properties were calculated at these standard conditions.
Temperature
25 °C
Pressure
1.01325 bar
Need properties at a different state? Use our interactive calculator.
Open CalculatorIdentification
- AtomsC: 7, H: 16
- CAS142-82-5
- FormulaC7H16
- ID142-82-5
- InChIC7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
- InChI KeyIMNFDUFMRHMDMM-UHFFFAOYSA-N
- IUPAC Nameheptane
- Molecular Weight (kg)100.202
- Phasel
- PubChem ID8900
- SMILESCCCCCCC
- Synonyms
Physical Properties
- Acentric factor0.349
- Critical pressure (bar)27.3573
- Critical temperature (°C)267.05
- Critical volume (m³/kmol)0.429185
- Dipole moment0
- Melting temperature (°C)-91
- Normal boiling temperature (°C)98.4004
State-dependent Properties
- API gravity74.101
- Compressibility factor0.00602659
- Density (kg/m³)679.598
- Dynamic viscosity (cP)0.390067
- Enthalpy of vaporization (mass) (kJ)365.012
- Enthalpy of vaporization (molar) (kJ/kmol)3.6575e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-4.1210e-7
- Kinematic viscosity5.7397e-7
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))225.105
- Molar volume (m³/kmol)0.147443
- Parachor5.5600e-5
- Poynting correction factor1.00568
- Prandtl number7.17286
- Saturation pressure (bar)0.0609985
- Saturation temperature (°C)98.4004
- Solubility parameter1.5207e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity0.680266
- Specific heat capacity (kJ/kg·K)2.24651
- Surface tension0.0197383
- Thermal conductivity0.122167
- Thermal diffusivity8.0019e-8
Safety Properties
- Autoignition temperature (°C)204
- Flash point temperature (°C)-7
- Lower flammability limit0.0085
- Upper flammability limit0.067
Environmental Properties
- Global warming potential
- Ozone depletion potential