Properties of caesium
Thermophysical properties for caesium (CAS: 7440-46-2). 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
- AtomsCs: 1
- CAS7440-46-2
- FormulaCs
- ID7440-46-2
- InChICs
- InChI KeyTVFDJXOCXUVLDH-UHFFFAOYSA-N
- IUPAC Namecaesium
- Molecular Weight (kg)132.905
- Phases
- PubChem ID5.3546e+6
- SMILES[Cs]
- Synonyms
Physical Properties
- Acentric factor-0.301325
- Critical pressure (bar)94
- Critical temperature (°C)1805.85
- Critical volume (m³/kmol)0.3
- Dipole moment
- Melting temperature (°C)28.5
- Normal boiling temperature (°C)671
State-dependent Properties
- API gravity-54.8007
- Compressibility factor0.00290035
- Density (kg/m³)1873.01
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)9.09088
- Enthalpy of vaporization (molar) (kJ/kmol)1208.23
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient
- Kinematic viscosity
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))32.2419
- Molar volume (m³/kmol)0.0709584
- Parachor6.5920e-5
- Poynting correction factor1.00295
- Prandtl number
- Saturation pressure (bar)1.7229e-9
- Saturation temperature (°C)689.473
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.87485
- Specific heat capacity (kJ/kg·K)0.242593
- Surface tension0.690134
- Thermal conductivity35.9
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit
- Upper flammability limit
Environmental Properties
- Global warming potential
- Ozone depletion potential