Properties of iodine
Thermophysical properties for iodine (CAS: 7553-56-2). 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
- AtomsI: 2
- CAS7553-56-2
- FormulaI2
- ID7553-56-2
- InChII2/c1-2
- InChI KeyPNDPGZBMCMUPRI-UHFFFAOYSA-N
- IUPAC Namemolecular iodine
- Molecular Weight (kg)253.809
- Phases
- PubChem ID807
- SMILESII
- Synonyms
Physical Properties
- Acentric factor0.1115
- Critical pressure (bar)116.54
- Critical temperature (°C)546
- Critical volume (m³/kmol)0.155
- Dipole moment
- Melting temperature (°C)113.55
- Normal boiling temperature (°C)184.4
State-dependent Properties
- API gravity-98.1212
- Compressibility factor0.00210302
- Density (kg/m³)4933
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)191.259
- Enthalpy of vaporization (molar) (kJ/kmol)4.8543e+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))54.4366
- Molar volume (m³/kmol)0.0514512
- Parachor2.8484e-5
- Poynting correction factor1.00246
- Prandtl number
- Saturation pressure (bar)0.00180921
- Saturation temperature (°C)184.365
- Solubility parameter2.7645e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity4.93785
- Specific heat capacity (kJ/kg·K)0.214478
- Surface tension0.0493848
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit-0.52957
- Upper flammability limit0.238954
Environmental Properties
- Global warming potential
- Ozone depletion potential