Properties of tritium

Thermophysical properties for tritium (CAS: 10028-17-8). 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

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Identification

  • Atoms
    T: 2
  • CAS
    10028-17-8
  • Formula
    T2
  • ID
    10028-17-8
  • InChI
    H2/h1H/i1+2T
  • InChI Key
    UFHFLCQGNIYNRP-JMRXTUGHSA-N
  • IUPAC Name
    tritium
  • Molecular Weight (kg)
    6.0321
  • Phase
    g
  • PubChem ID
    2.4824e+4
  • SMILES
    [3H][3H]
  • Synonyms

Physical Properties

  • Acentric factor
    7.1561e-7
  • Critical pressure (bar)
    23.8
  • Critical temperature (°C)
    -228.24
  • Critical volume (m³/kmol)
    0.04111
  • Dipole moment
    0
  • Melting temperature (°C)
    -252.53
  • Normal boiling temperature (°C)
    -248.11

State-dependent Properties

  • API gravity
    831.903
  • Compressibility factor
    1
  • Density (kg/m³)
    0.246556
  • Dynamic viscosity (cP)
    0.0193945
  • Enthalpy of vaporization (mass) (kJ)
    0
  • Enthalpy of vaporization (molar) (kJ/kmol)
  • Joule–Thomson coefficient
    9.1885e-13
  • Kinematic viscosity
    7.8661e-5
  • Molar enthalpy (kJ/kmol)
    0
  • Molar heat capacity (kJ/(kmol·K))
    9.53107
  • Molar volume (m³/kmol)
    24.4654
  • Parachor
  • Poynting correction factor
    0
  • Prandtl number
    0.505969
  • Saturation pressure (bar)
    1.7977e+303
  • Saturation temperature (°C)
    -244.921
  • Solubility parameter
  • Specific gravity
    0.208163
  • Specific heat capacity (kJ/kg·K)
    1.58006
  • Surface tension
  • Thermal conductivity
    0.0605658
  • Thermal diffusivity
    1.5547e-4

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

Failed Properties:

  • Gibbs free energy (kJ/kmol)Failed
  • Molar entropy (kJ/(kmol·K))Failed
  • Specific enthalpy (kJ)Failed
  • Specific entropy (kJ/kg·K)Failed