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Properties of ibuprofen

Thermophysical properties for ibuprofen (CAS: 15687-27-1). 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: 13, H: 18, O: 2
  • CAS
    15687-27-1
  • Formula
    C13H18O2
  • ID
    15687-27-1
  • InChI
    C13H18O2/c1-9(2)8-11-4-6-12(7-5-11)10(3)13(14)15/h4-7,9-10H,8H2,1-3H3,(H,14,15)
  • InChI Key
    HEFNNWSXXWATRW-UHFFFAOYSA-N
  • IUPAC Name
    2-[4-(2-methylpropyl)phenyl]propanoic acid
  • Molecular Weight (kg)
    206.281
  • Phase
    s
  • PubChem ID
    3672
  • SMILES
    CC(C)CC1=CC=C(C=C1)C(C)C(=O)O
  • Synonyms

Physical Properties

  • Acentric factor
    0.823
  • Critical pressure (bar)
    29.8
  • Critical temperature (°C)
    491.85
  • Critical volume (m³/kmol)
    0.668
  • Dipole moment
  • Melting temperature (°C)
    76
  • Normal boiling temperature (°C)
    400.18

State-dependent Properties

  • API gravity
    9.94446
  • Compressibility factor
    0.00759886
  • Density (kg/m³)
    1109.58
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    456.524
  • Enthalpy of vaporization (molar) (kJ/kmol)
    9.4172e+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))
    280.102
  • Molar volume (m³/kmol)
    0.185909
  • Parachor
    9.3988e-5
  • Poynting correction factor
    1.00851
  • Prandtl number
  • Saturation pressure (bar)
    1.9561e-7
  • Saturation temperature (°C)
    293.62
  • Solubility parameter
    2.1033e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.11067
  • Specific heat capacity (kJ/kg·K)
    1.35787
  • Surface tension
    0.0408679
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.00691476
  • Upper flammability limit
    0.044003

Environmental Properties

  • Global warming potential
  • Ozone depletion potential