Properties of carbon dioxide
Thermophysical properties for carbon dioxide (CAS: 124-38-9). 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: 1, O: 2
- CAS124-38-9
- FormulaCO2
- ID124-38-9
- InChICO2/c2-1-3
- InChI KeyCURLTUGMZLYLDI-UHFFFAOYSA-N
- IUPAC Namecarbon dioxide
- Molecular Weight (kg)44.0095
- Phaseg
- PubChem ID280
- SMILESC(=O)=O
- Synonyms
Physical Properties
- Acentric factor0.22394
- Critical pressure (bar)73.773
- Critical temperature (°C)30.9782
- Critical volume (m³/kmol)0.0941185
- Dipole moment0
- Melting temperature (°C)-56.5
- Normal boiling temperature (°C)-78.48
State-dependent Properties
- Compressibility factor1
- Density (kg/m³)1.79885
- Dynamic viscosity (cP)0.0149146
- Enthalpy of vaporization (mass) (kJ)119.646
- Enthalpy of vaporization (molar) (kJ/kmol)5265.54
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient2.3580e-13
- Kinematic viscosity8.2912e-6
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))37.1408
- Molar volume (m³/kmol)24.4654
- Parachor
- Poynting correction factor
- Prandtl number0.75676
- Saturation pressure (bar)64.3424
- Saturation temperature (°C)-88.5389
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.51873
- Specific heat capacity (kJ/kg·K)0.843927
- Surface tension5.6971e-4
- Thermal conductivity0.0166326
- Thermal diffusivity1.0956e-5
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit
- Upper flammability limit0.235
Environmental Properties
- Global warming potential1
- Ozone depletion potential
Failed Properties:
- API gravityFailed