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Properties of n,n'-diphenyl-p-phenylenediamine

Thermophysical properties for n,n'-diphenyl-p-phenylenediamine (CAS: 74-31-7). 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
    C: 18, H: 16, N: 2
  • CAS
    74-31-7
  • Formula
    C18H16N2
  • ID
    74-31-7
  • InChI
    C18H16N2/c1-3-7-15(8-4-1)19-17-11-13-18(14-12-17)20-16-9-5-2-6-10-16/h1-14,19-20H
  • InChI Key
    UTGQNNCQYDRXCH-UHFFFAOYSA-N
  • IUPAC Name
    n1,n4-diphenylbenzene-1,4-diamine
  • Molecular Weight (kg)
    260.333
  • Phase
    s
  • PubChem ID
    6319
  • SMILES
    C1=CC=C(C=C1)NC2=CC=C(C=C2)NC3=CC=CC=C3
  • Synonyms

Physical Properties

  • Acentric factor
    0.859
  • Critical pressure (bar)
    23.1
  • Critical temperature (°C)
    743.85
  • Critical volume (m³/kmol)
    0.817
  • Dipole moment
  • Melting temperature (°C)
    145.5
  • Normal boiling temperature (°C)
    498.85

State-dependent Properties

  • API gravity
    1.70389
  • Compressibility factor
    0.00893929
  • Density (kg/m³)
    1190.35
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    574.238
  • Enthalpy of vaporization (molar) (kJ/kmol)
    1.4949e+5
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
  • Kinematic viscosity
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    315.157
  • Molar volume (m³/kmol)
    0.218703
  • Parachor
    1.2164e-4
  • Poynting correction factor
    1.0101
  • Prandtl number
  • Saturation pressure (bar)
    1.1915e-13
  • Saturation temperature (°C)
    498.019
  • Solubility parameter
    2.4451e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.19152
  • Specific heat capacity (kJ/kg·K)
    1.21059
  • Surface tension
    0.0575133
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.00520242
  • Upper flammability limit
    0.0331063

Environmental Properties

  • Global warming potential
  • Ozone depletion potential