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Properties of alpha-terpinene

Thermophysical properties for alpha-terpinene (CAS: 99-86-5). 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: 10, H: 16
  • CAS
    99-86-5
  • Formula
    C10H16
  • ID
    99-86-5
  • InChI
    C10H16/c1-8(2)10-6-4-9(3)5-7-10/h4,6,8H,5,7H2,1-3H3
  • InChI Key
    YHQGMYUVUMAZJR-UHFFFAOYSA-N
  • IUPAC Name
    1-methyl-4-propan-2-yl-cyclohexa-1,3-diene
  • Molecular Weight (kg)
    136.234
  • Phase
    l
  • PubChem ID
    7462
  • SMILES
    CC1=CC=C(CC1)C(C)C
  • Synonyms

Physical Properties

  • Acentric factor
    0.372
  • Critical pressure (bar)
    28
  • Critical temperature (°C)
    375.85
  • Critical volume (m³/kmol)
    0.489
  • Dipole moment
  • Melting temperature (°C)
    -47.51
  • Normal boiling temperature (°C)
    174

State-dependent Properties

  • API gravity
    34.8282
  • Compressibility factor
    0.00659896
  • Density (kg/m³)
    843.836
  • Dynamic viscosity (cP)
    0.447843
  • Enthalpy of vaporization (mass) (kJ)
    353.261
  • Enthalpy of vaporization (molar) (kJ/kmol)
    4.8126e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.6584e-7
  • Kinematic viscosity
    5.3072e-7
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    267.113
  • Molar volume (m³/kmol)
    0.161446
  • Parachor
    6.6518e-5
  • Poynting correction factor
    1.00661
  • Prandtl number
    6.9614
  • Saturation pressure (bar)
    0.0022897
  • Saturation temperature (°C)
    174.582
  • Solubility parameter
    1.6815e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.844666
  • Specific heat capacity (kJ/kg·K)
    1.96069
  • Surface tension
    0.0280633
  • Thermal conductivity
    0.126136
  • Thermal diffusivity
    7.6238e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    46
  • Lower flammability limit
    0.00813128
  • Upper flammability limit
    0.0517445

Environmental Properties

  • Global warming potential
  • Ozone depletion potential