Properties of hydrazine

Thermophysical properties for hydrazine (CAS: 302-01-2). 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

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Identification

  • Atoms
    H: 4, N: 2
  • CAS
    302-01-2
  • Formula
    H4N2
  • ID
    302-01-2
  • InChI
    H4N2/c1-2/h1-2H2
  • InChI Key
    OAKJQQAXSVQMHS-UHFFFAOYSA-N
  • IUPAC Name
    diazane
  • Molecular Weight (kg)
    32.0452
  • Phase
    l
  • PubChem ID
    9321
  • SMILES
    NN
  • Synonyms

Physical Properties

  • Acentric factor
    0.328
  • Critical pressure (bar)
    146.921
  • Critical temperature (°C)
    379.85
  • Critical volume (m³/kmol)
    0.0961
  • Dipole moment
    1.75
  • Melting temperature (°C)
    2
  • Normal boiling temperature (°C)
    113.55

State-dependent Properties

  • API gravity
    8.23891
  • Compressibility factor
    0.00130517
  • Density (kg/m³)
    1003.56
  • Dynamic viscosity (cP)
    0.927853
  • Enthalpy of vaporization (mass) (kJ)
    1384.97
  • Enthalpy of vaporization (molar) (kJ/kmol)
    4.4382e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -2.4077e-7
  • Kinematic viscosity
    9.2456e-7
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    98.8255
  • Molar volume (m³/kmol)
    0.0319315
  • Parachor
    1.6233e-5
  • Poynting correction factor
    1.00128
  • Prandtl number
    8.20949
  • Saturation pressure (bar)
    0.0191708
  • Saturation temperature (°C)
    113.416
  • Solubility parameter
    3.6225e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.00455
  • Specific heat capacity (kJ/kg·K)
    3.08394
  • Surface tension
    0.0664486
  • Thermal conductivity
    0.348554
  • Thermal diffusivity
    1.1262e-7

Safety Properties

  • Autoignition temperature (°C)
    23
  • Flash point temperature (°C)
    38
  • Lower flammability limit
    0.029
  • Upper flammability limit
    0.98

Environmental Properties

  • Global warming potential
  • Ozone depletion potential