Properties of rubidium
Thermophysical properties for rubidium (CAS: 7440-17-7). 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
- AtomsRb: 1
- CAS7440-17-7
- FormulaRb
- ID7440-17-7
- InChIRb
- InChI KeyIGLNJRXAVVLDKE-UHFFFAOYSA-N
- IUPAC Namerubidium
- Molecular Weight (kg)85.4678
- Phases
- PubChem ID5.3577e+6
- SMILES[Rb]
- Synonyms
Physical Properties
- Acentric factor-0.0663885
- Critical pressure (bar)160
- Critical temperature (°C)1831.85
- Critical volume (m³/kmol)0.25
- Dipole moment
- Melting temperature (°C)39.3
- Normal boiling temperature (°C)688
State-dependent Properties
- API gravity-34.6791
- Compressibility factor0.00228328
- Density (kg/m³)1530
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)913.565
- Enthalpy of vaporization (molar) (kJ/kmol)7.8080e+4
- 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))31.0428
- Molar volume (m³/kmol)0.0558614
- Parachor3.2209e-5
- Poynting correction factor1.0024
- Prandtl number
- Saturation pressure (bar)5.5198e-10
- Saturation temperature (°C)697.987
- Solubility parameter3.5937e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.5315
- Specific heat capacity (kJ/kg·K)0.36321
- Surface tension0.0907759
- Thermal conductivity58.2
- 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