Properties of sulfur
Thermophysical properties for sulfur (CAS: 7704-34-9). 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
- AtomsS: 1
- CAS7704-34-9
- FormulaS
- ID7704-34-9
- InChIS
- InChI KeyNINIDFKCEFEMDL-UHFFFAOYSA-N
- IUPAC Namesulfur
- Molecular Weight (kg)32.065
- Phasel
- PubChem ID402
- SMILES[S]
- Synonyms
Physical Properties
- Acentric factor0.2463
- Critical pressure (bar)117.537
- Critical temperature (°C)1040.85
- Critical volume (m³/kmol)0.0568182
- Dipole moment0
- Melting temperature (°C)13.255
- Normal boiling temperature (°C)444.61
State-dependent Properties
- API gravity-52.6121
- Compressibility factor7.3141e-4
- Density (kg/m³)1791.92
- Dynamic viscosity (cP)0.278358
- Enthalpy of vaporization (mass) (kJ)345.026
- Enthalpy of vaporization (molar) (kJ/kmol)1.1063e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-7.7966e-7
- Kinematic viscosity1.5534e-7
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))22.9515
- Molar volume (m³/kmol)0.0178942
- Parachor9.3508e-6
- Poynting correction factor1.00073
- Prandtl number2.16396
- Saturation pressure (bar)7.1226e-8
- Saturation temperature (°C)444.197
- Solubility parameter2.1903e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.79368
- Specific heat capacity (kJ/kg·K)0.715782
- Surface tension0.0743491
- Thermal conductivity0.0920738
- Thermal diffusivity7.1786e-8
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit0.130864
- Upper flammability limit0.216691
Environmental Properties
- Global warming potential
- Ozone depletion potential