Properties of oxalic acid

Thermophysical properties for oxalic acid (CAS: 144-62-7). 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: 2, H: 2, O: 4
  • CAS
    144-62-7
  • Formula
    C2H2O4
  • ID
    144-62-7
  • InChI
    C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
  • InChI Key
    MUBZPKHOEPUJKR-UHFFFAOYSA-N
  • IUPAC Name
    ethanedioic acid
  • Molecular Weight (kg)
    90.0349
  • Phase
    s
  • PubChem ID
    971
  • SMILES
    C(=O)(C(=O)O)O
  • Synonyms

Physical Properties

  • Acentric factor
    0.918
  • Critical pressure (bar)
    70.2
  • Critical temperature (°C)
    530.85
  • Critical volume (m³/kmol)
    0.205
  • Dipole moment
  • Melting temperature (°C)
    101.5
  • Normal boiling temperature (°C)
    295.85

State-dependent Properties

  • API gravity
    -35.0071
  • Compressibility factor
    0.00217934
  • Density (kg/m³)
    1688.63
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    1072.34
  • Enthalpy of vaporization (molar) (kJ/kmol)
    9.6548e+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))
    91
  • Molar volume (m³/kmol)
    0.0533183
  • Parachor
    3.4889e-5
  • Poynting correction factor
    1.00252
  • Prandtl number
  • Saturation pressure (bar)
    1.2662e-7
  • Saturation temperature (°C)
    296.006
  • Solubility parameter
    3.9123e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.69029
  • Specific heat capacity (kJ/kg·K)
    1.01072
  • Surface tension
    0.102825
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    166
  • Lower flammability limit
    0.157464
  • Upper flammability limit
    0.220033

Environmental Properties

  • Global warming potential
  • Ozone depletion potential