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Properties of benzo[a]pyrene

Thermophysical properties for benzo[a]pyrene (CAS: 50-32-8). 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
    C: 20, H: 12
  • CAS
    50-32-8
  • Formula
    C20H12
  • ID
    50-32-8
  • InChI
    C20H12/c1-2-7-17-15(4-1)12-16-9-8-13-5-3-6-14-10-11-18(17)20(16)19(13)14/h1-12H
  • InChI Key
    FMMWHPNWAFZXNH-UHFFFAOYSA-N
  • IUPAC Name
    benzo[a]pyrene
  • Molecular Weight (kg)
    252.309
  • Phase
    s
  • PubChem ID
    2336
  • SMILES
    C1=CC=C2C3=C4C(=CC2=C1)C=CC5=C4C(=CC=C5)C=C3
  • Synonyms

Physical Properties

  • Acentric factor
    0.385542
  • Critical pressure (bar)
    26.084
  • Critical temperature (°C)
    757.723
  • Critical volume (m³/kmol)
    0.7655
  • Dipole moment
  • Melting temperature (°C)
    176.5
  • Normal boiling temperature (°C)
    495.05

State-dependent Properties

  • API gravity
    -0.145835
  • Compressibility factor
    0.00869042
  • Density (kg/m³)
    1186.7
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    369.955
  • Enthalpy of vaporization (molar) (kJ/kmol)
    9.3343e+4
  • 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))
    284.642
  • Molar volume (m³/kmol)
    0.212615
  • Parachor
    1.1002e-4
  • Poynting correction factor
    1.00966
  • Prandtl number
  • Saturation pressure (bar)
    4.7012e-9
  • Saturation temperature (°C)
    444.689
  • Solubility parameter
    1.9656e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.18786
  • Specific heat capacity (kJ/kg·K)
    1.12815
  • Surface tension
    0.0460866
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.00497828
  • Upper flammability limit
    0.0316799

Environmental Properties

  • Global warming potential
  • Ozone depletion potential