Properties of butane
Thermophysical properties for butane (CAS: 106-97-8). 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: 4, H: 10
- CAS106-97-8
- FormulaC4H10
- ID106-97-8
- InChIC4H10/c1-3-4-2/h3-4H2,1-2H3
- InChI KeyIJDNQMDRQITEOD-UHFFFAOYSA-N
- IUPAC Namebutane
- Molecular Weight (kg)58.1222
- Phaseg
- PubChem ID7843
- SMILESCCCC
- Synonyms
Physical Properties
- Acentric factor0.201
- Critical pressure (bar)37.96
- Critical temperature (°C)151.975
- Critical volume (m³/kmol)0.254922
- Dipole moment0
- Melting temperature (°C)-138.1
- Normal boiling temperature (°C)-0.490099
State-dependent Properties
- Compressibility factor1
- Density (kg/m³)2.37569
- Dynamic viscosity (cP)0.00737549
- Enthalpy of vaporization (mass) (kJ)361.477
- Enthalpy of vaporization (molar) (kJ/kmol)2.1010e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient8.8928e-14
- Kinematic viscosity3.1046e-6
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))98.4797
- Molar volume (m³/kmol)24.4654
- Parachor
- Poynting correction factor
- Prandtl number0.754463
- Saturation pressure (bar)2.43292
- Saturation temperature (°C)-0.490105
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity2.00575
- Specific heat capacity (kJ/kg·K)1.69436
- Surface tension0.011921
- Thermal conductivity0.0165637
- Thermal diffusivity4.1149e-6
Safety Properties
- Autoignition temperature (°C)372
- Flash point temperature (°C)-60
- Lower flammability limit0.014
- Upper flammability limit0.093
Environmental Properties
- Global warming potential0.022
- Ozone depletion potential
Failed Properties:
- API gravityFailed