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Properties of 4,5-Dimethyl-2-thiophenecarboxylic acid

Thermophysical properties for 4,5-Dimethyl-2-thiophenecarboxylic acid (CAS: 40808-24-0). 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: 7, H: 8, O: 2, S: 1
  • CAS
    40808-24-0
  • Formula
    C7H8O2S
  • ID
    40808-24-0
  • InChI
    C7H8O2S/c1-4-3-6(7(8)9)10-5(4)2/h3H,1-2H3,(H,8,9)
  • InChI Key
    RZCDKLUMNAKVFB-UHFFFAOYSA-N
  • IUPAC Name
    4,5-dimethylthiophene-2-carboxylic acid
  • Molecular Weight (kg)
    156.202
  • Phase
    s
  • PubChem ID
    2.7696e+6
  • SMILES
    Cc1cc(C(=O)O)sc1C
  • Synonyms

Physical Properties

  • Acentric factor
  • Critical pressure (bar)
    40.7251
  • Critical temperature (°C)
    549.172
  • Critical volume (m³/kmol)
    0.4115
  • Dipole moment
  • Melting temperature (°C)
    211
  • Normal boiling temperature (°C)
    313.16

State-dependent Properties

  • API gravity
    -19.3112
  • Compressibility factor
    0.00490602
  • Density (kg/m³)
    1301.38
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    0
  • Enthalpy of vaporization (molar) (kJ/kmol)
  • 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))
    162.674
  • Molar volume (m³/kmol)
    0.120028
  • Parachor
    6.2009e-5
  • Poynting correction factor
    1.00511
  • Prandtl number
  • Saturation pressure (bar)
    4.0157e-6
  • Saturation temperature (°C)
    313.16
  • Solubility parameter
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.30267
  • Specific heat capacity (kJ/kg·K)
    1.04144
  • Surface tension
    0.0599956
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.0140737
  • Upper flammability limit
    0.0895599

Environmental Properties

  • Global warming potential
  • Ozone depletion potential