Properties of iridium
Thermophysical properties for iridium (CAS: 7439-88-5). 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
- AtomsIr: 1
- CAS7439-88-5
- FormulaIr
- ID7439-88-5
- InChIIr
- InChI KeyGKOZUEZYRPOHIO-UHFFFAOYSA-N
- IUPAC Nameiridium
- Molecular Weight (kg)192.217
- Phases
- PubChem ID2.3924e+4
- SMILES[Ir]
- Synonyms
Physical Properties
- Acentric factor7.1561e-7
- Critical pressure (bar)7.2356e+4
- Critical temperature (°C)1.4762e+4
- Critical volume (m³/kmol)0.00518
- Dipole moment
- Melting temperature (°C)2446
- Normal boiling temperature (°C)4428
State-dependent Properties
- API gravity-124.06
- Compressibility factor3.4823e-4
- Density (kg/m³)2.2562e+4
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)3659.26
- Enthalpy of vaporization (molar) (kJ/kmol)7.0337e+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))25.09
- Molar volume (m³/kmol)0.0085195
- Parachor1.3177e-5
- Poynting correction factor1.00041
- Prandtl number
- Saturation pressure (bar)2.6658e-130
- Saturation temperature (°C)4662.4
- Solubility parameter2.6321e+5
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity22.5842
- Specific heat capacity (kJ/kg·K)0.130529
- Surface tension2.87313
- Thermal conductivity147
- 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