Properties of radium
Thermophysical properties for radium (CAS: 7440-14-4). 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
- AtomsRa: 1
- CAS7440-14-4
- FormulaRa
- ID7440-14-4
- InChIRa
- InChI KeyHCWPIIXVSYCSAN-UHFFFAOYSA-N
- IUPAC Nameradium
- Molecular Weight (kg)226
- Phases
- PubChem ID6.3281e+6
- SMILES[Ra]
- Synonyms
Physical Properties
- Acentric factor0.0752967
- Critical pressure (bar)3684.3
- Critical temperature (°C)4589.67
- Critical volume (m³/kmol)0.03292
- Dipole moment
- Melting temperature (°C)696
- Normal boiling temperature (°C)1737
State-dependent Properties
- API gravity-125.512
- Compressibility factor0.00184751
- Density (kg/m³)5000
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)1340.93
- Enthalpy of vaporization (molar) (kJ/kmol)3.0305e+5
- 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))10.3985
- Molar volume (m³/kmol)0.0452
- Parachor1.1257e-5
- Poynting correction factor1.00039
- Prandtl number
- Saturation pressure (bar)4.9721e-45
- Saturation temperature (°C)1768.92
- Solubility parameter1.7714e+5
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity5.00492
- Specific heat capacity (kJ/kg·K)0.0460112
- Surface tension1.90492
- Thermal conductivity18.9269
- 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