Properties of pentane
Thermophysical properties for pentane (CAS: 109-66-0). 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: 5, H: 12
- CAS109-66-0
- FormulaC5H12
- ID109-66-0
- InChIC5H12/c1-3-5-4-2/h3-5H2,1-2H3
- InChI KeyOFBQJSOFQDEBGM-UHFFFAOYSA-N
- IUPAC Namepentane
- Molecular Weight (kg)72.1488
- Phasel
- PubChem ID8003
- SMILESCCCCC
- Synonyms
Physical Properties
- Acentric factor0.251
- Critical pressure (bar)33.675
- Critical temperature (°C)196.55
- Critical volume (m³/kmol)0.311526
- Dipole moment0
- Melting temperature (°C)-130
- Normal boiling temperature (°C)36.0593
State-dependent Properties
- API gravity92.6768
- Compressibility factor0.00474721
- Density (kg/m³)621.21
- Dynamic viscosity (cP)0.179829
- Enthalpy of vaporization (mass) (kJ)366.405
- Enthalpy of vaporization (molar) (kJ/kmol)2.6436e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-3.6060e-7
- Kinematic viscosity2.8948e-7
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))167.117
- Molar volume (m³/kmol)0.116142
- Parachor4.1145e-5
- Poynting correction factor1.00155
- Prandtl number3.72013
- Saturation pressure (bar)0.683551
- Saturation temperature (°C)36.0593
- Solubility parameter1.4362e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity0.621821
- Specific heat capacity (kJ/kg·K)2.31628
- Surface tension0.0154537
- Thermal conductivity0.111968
- Thermal diffusivity7.7815e-8
Safety Properties
- Autoignition temperature (°C)243
- Flash point temperature (°C)-40
- Lower flammability limit0.011
- Upper flammability limit0.087
Environmental Properties
- Global warming potential
- Ozone depletion potential