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Properties of 2-methylbutanoic acid

Thermophysical properties for 2-methylbutanoic acid (CAS: 116-53-0). 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: 5, H: 10, O: 2
  • CAS
    116-53-0
  • Formula
    C5H10O2
  • ID
    116-53-0
  • InChI
    C5H10O2/c1-3-4(2)5(6)7/h4H,3H2,1-2H3,(H,6,7)
  • InChI Key
    WLAMNBDJUVNPJU-UHFFFAOYSA-N
  • IUPAC Name
    2-methylbutanoic acid
  • Molecular Weight (kg)
    102.132
  • Phase
    l
  • PubChem ID
    8314
  • SMILES
    CCC(C)C(=O)O
  • Synonyms

Physical Properties

  • Acentric factor
    0.589
  • Critical pressure (bar)
    38.9
  • Critical temperature (°C)
    369.85
  • Critical volume (m³/kmol)
    0.347
  • Dipole moment
  • Melting temperature (°C)
    -48
  • Normal boiling temperature (°C)
    176.5

State-dependent Properties

  • API gravity
    18.8718
  • Compressibility factor
    0.00448046
  • Density (kg/m³)
    931.721
  • Dynamic viscosity (cP)
    1.77493
  • Enthalpy of vaporization (mass) (kJ)
    573.22
  • Enthalpy of vaporization (molar) (kJ/kmol)
    5.8544e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.2600e-7
  • Kinematic viscosity
    1.9050e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    184.1
  • Molar volume (m³/kmol)
    0.109616
  • Parachor
    4.9211e-5
  • Poynting correction factor
    1.00449
  • Prandtl number
    22.0786
  • Saturation pressure (bar)
    6.5243e-4
  • Saturation temperature (°C)
    177.368
  • Solubility parameter
    2.2616e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.932638
  • Specific heat capacity (kJ/kg·K)
    1.80257
  • Surface tension
    0.0398972
  • Thermal conductivity
    0.144911
  • Thermal diffusivity
    8.6283e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.0182082
  • Upper flammability limit
    0.101751

Environmental Properties

  • Global warming potential
  • Ozone depletion potential