Properties of diborane

Thermophysical properties for diborane (CAS: 19287-45-7). 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
    B: 2, H: 6
  • CAS
    19287-45-7
  • Formula
    B2H6
  • ID
    19287-45-7
  • InChI
    B2H6/c1-3-2-4-1/h1-2H2
  • InChI Key
    KLDBIFITUCWVCC-UHFFFAOYSA-N
  • IUPAC Name
    diborane(6)
  • Molecular Weight (kg)
    27.6696
  • Phase
    g
  • PubChem ID
    1.2545e+7
  • SMILES
    [BH2]1[H][BH2][H]1
  • Synonyms

Physical Properties

  • Acentric factor
    0.125
  • Critical pressure (bar)
    40.53
  • Critical temperature (°C)
    16.65
  • Critical volume (m³/kmol)
    0.1731
  • Dipole moment
    0
  • Melting temperature (°C)
    -164.85
  • Normal boiling temperature (°C)
    -92.49

State-dependent Properties

  • API gravity
    568.228
  • Compressibility factor
    1
  • Density (kg/m³)
    1.13097
  • Dynamic viscosity (cP)
    0.00895281
  • Enthalpy of vaporization (mass) (kJ)
    0
  • Enthalpy of vaporization (molar) (kJ/kmol)
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    1.5076e-13
  • Kinematic viscosity
    7.9160e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    58.0907
  • Molar volume (m³/kmol)
    24.4654
  • Parachor
  • Poynting correction factor
    0.775392
  • Prandtl number
    0.755015
  • Saturation pressure (bar)
    37.4439
  • Saturation temperature (°C)
    -92.4965
  • Solubility parameter
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.954856
  • Specific heat capacity (kJ/kg·K)
    2.09944
  • Surface tension
    0
  • Thermal conductivity
    0.0248947
  • Thermal diffusivity
    1.0485e-5

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.008
  • Upper flammability limit
    0.88

Environmental Properties

  • Global warming potential
  • Ozone depletion potential