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Properties of 5-Methyloctadecane

Thermophysical properties for 5-Methyloctadecane (CAS: 25117-35-5). 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: 19, H: 40
  • CAS
    25117-35-5
  • Formula
    C19H40
  • ID
    25117-35-5
  • InChI
    C19H40/c1-4-6-8-9-10-11-12-13-14-15-16-18-19(3)17-7-5-2/h19H,4-18H2,1-3H3
  • InChI Key
    FRVYSTFGTANOHG-UHFFFAOYSA-N
  • IUPAC Name
    5-methyloctadecane
  • Molecular Weight (kg)
    268.521
  • Phase
    l
  • PubChem ID
    5.2018e+5
  • SMILES
    CCCCCCCCCCCCCC(C)CCCC
  • Synonyms

Physical Properties

  • Acentric factor
  • Critical pressure (bar)
    10.8635
  • Critical temperature (°C)
    522.061
  • Critical volume (m³/kmol)
    1.0935
  • Dipole moment
  • Melting temperature (°C)
    -13.15
  • Normal boiling temperature (°C)
    360.73

State-dependent Properties

  • API gravity
    42.1141
  • Compressibility factor
    0.0135684
  • Density (kg/m³)
    808.906
  • Dynamic viscosity (cP)
    4.53681
  • Enthalpy of vaporization (mass) (kJ)
    0
  • Enthalpy of vaporization (molar) (kJ/kmol)
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.6336e-7
  • Kinematic viscosity
    5.6086e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    567.326
  • Molar volume (m³/kmol)
    0.331956
  • Parachor
    1.3307e-4
  • Poynting correction factor
    1.01366
  • Prandtl number
    93.6471
  • Saturation pressure (bar)
    2.6380e-6
  • Saturation temperature (°C)
    322.58
  • Solubility parameter
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.809702
  • Specific heat capacity (kJ/kg·K)
    2.11278
  • Surface tension
    0.0244465
  • Thermal conductivity
    0.102355
  • Thermal diffusivity
    5.9890e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.0039557
  • Upper flammability limit
    0.0251726

Environmental Properties

  • Global warming potential
  • Ozone depletion potential