Properties of sulfur hexafluoride

Thermophysical properties for sulfur hexafluoride (CAS: 2551-62-4). 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 Calculator

Identification

  • Atoms
    F: 6, S: 1
  • CAS
    2551-62-4
  • Formula
    F6S
  • ID
    2551-62-4
  • InChI
    F6S/c1-7(2,3,4,5)6
  • InChI Key
    SFZCNBIFKDRMGX-UHFFFAOYSA-N
  • IUPAC Name
    hexakis(fluoranyl)-$l^{6}-sulfane
  • Molecular Weight (kg)
    146.055
  • Phase
    g
  • PubChem ID
    1.7358e+4
  • SMILES
    FS(F)(F)(F)(F)F
  • Synonyms

Physical Properties

  • Acentric factor
    0.218
  • Critical pressure (bar)
    37.5498
  • Critical temperature (°C)
    45.5732
  • Critical volume (m³/kmol)
    0.196761
  • Dipole moment
    0
  • Melting temperature (°C)
    -50.8
  • Normal boiling temperature (°C)
    -63.85

State-dependent Properties

  • Compressibility factor
    1
  • Density (kg/m³)
    5.96988
  • Dynamic viscosity (cP)
    0.0152202
  • Enthalpy of vaporization (mass) (kJ)
    61.5126
  • Enthalpy of vaporization (molar) (kJ/kmol)
    8984.25
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    9.0223e-14
  • Kinematic viscosity
    2.5495e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    97.0671
  • Molar volume (m³/kmol)
    24.4654
  • Parachor
  • Poynting correction factor
  • Prandtl number
    0.77867
  • Saturation pressure (bar)
    23.6355
  • Saturation temperature (°C)
    -67.5642
  • Solubility parameter
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    5.04025
  • Specific heat capacity (kJ/kg·K)
    0.664591
  • Surface tension
    0.00162978
  • Thermal conductivity
    0.0129904
  • Thermal diffusivity
    3.2742e-6

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    -0.217174
  • Upper flammability limit
    0.244248

Environmental Properties

  • Global warming potential
    1.6300e+4
  • Ozone depletion potential

Failed Properties:

  • API gravityFailed