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Properties of ascorbic acid

Thermophysical properties for ascorbic acid (CAS: 50-81-7). 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: 6, H: 8, O: 6
  • CAS
    50-81-7
  • Formula
    C6H8O6
  • ID
    50-81-7
  • InChI
    C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
  • InChI Key
    CIWBSHSKHKDKBQ-JLAZNSOCSA-N
  • IUPAC Name
    (2r)-2-[(1s)-1,2-bis(oxidanyl)ethyl]-3,4-bis(oxidanyl)-2h-furan-5-one
  • Molecular Weight (kg)
    176.124
  • Phase
    s
  • PubChem ID
    5.4670e+7
  • SMILES
    C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O
  • Synonyms

Physical Properties

  • Acentric factor
    2.389
  • Critical pressure (bar)
    52.9
  • Critical temperature (°C)
    509.85
  • Critical volume (m³/kmol)
    0.339
  • Dipole moment
  • Melting temperature (°C)
    191
  • Normal boiling temperature (°C)
    363.85

State-dependent Properties

  • API gravity
    -50.5276
  • Compressibility factor
    0.00374895
  • Density (kg/m³)
    1920.25
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    1369.69
  • Enthalpy of vaporization (molar) (kJ/kmol)
    2.4123e+5
  • 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))
    181.162
  • Molar volume (m³/kmol)
    0.0917196
  • Parachor
    6.0111e-5
  • Poynting correction factor
    1.00414
  • Prandtl number
  • Saturation pressure (bar)
    1.5260e-17
  • Saturation temperature (°C)
    362.711
  • Solubility parameter
    4.8590e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.92213
  • Specific heat capacity (kJ/kg·K)
    1.0286
  • Surface tension
    0.122788
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.022251
  • Upper flammability limit
    0.118643

Environmental Properties

  • Global warming potential
  • Ozone depletion potential