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Properties of octogen

Thermophysical properties for octogen (CAS: 2691-41-0). 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: 4, H: 8, N: 8, O: 8
  • CAS
    2691-41-0
  • Formula
    C4H8N8O8
  • ID
    2691-41-0
  • InChI
    C4H8N8O8/c13-9(14)5-1-6(10(15)16)3-8(12(19)20)4-7(2-5)11(17)18/h1-4H2
  • InChI Key
    UZGLIIJVICEWHF-UHFFFAOYSA-N
  • IUPAC Name
    1,3,5,7-tetranitro-1,3,5,7-tetrazocane
  • Molecular Weight (kg)
    296.155
  • Phase
    s
  • PubChem ID
    1.7596e+4
  • SMILES
    C1N(CN(CN(CN1[N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-]
  • Synonyms

Physical Properties

  • Acentric factor
    3
  • Critical pressure (bar)
    25
  • Critical temperature (°C)
    756.85
  • Critical volume (m³/kmol)
    0.65
  • Dipole moment
  • Melting temperature (°C)
    278
  • Normal boiling temperature (°C)
    690.77

State-dependent Properties

  • API gravity
    -40.7859
  • Compressibility factor
    0.00686797
  • Density (kg/m³)
    1762.54
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    1626.38
  • Enthalpy of vaporization (molar) (kJ/kmol)
    4.8166e+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))
    260.165
  • Molar volume (m³/kmol)
    0.168028
  • Parachor
    1.1829e-4
  • Poynting correction factor
    1.00781
  • Prandtl number
  • Saturation pressure (bar)
    5.1445e-38
  • Saturation temperature (°C)
    614.16
  • Solubility parameter
    5.0184e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.76427
  • Specific heat capacity (kJ/kg·K)
    0.878475
  • Surface tension
    0.144772
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.0184657
  • Upper flammability limit
    0.1029

Environmental Properties

  • Global warming potential
  • Ozone depletion potential