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Properties of acetaminophen

Thermophysical properties for acetaminophen (CAS: 103-90-2). 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: 8, H: 9, N: 1, O: 2
  • CAS
    103-90-2
  • Formula
    C8H9NO2
  • ID
    103-90-2
  • InChI
    C8H9NO2/c1-6(10)9-7-2-4-8(11)5-3-7/h2-5,11H,1H3,(H,9,10)
  • InChI Key
    RZVAJINKPMORJF-UHFFFAOYSA-N
  • IUPAC Name
    n-(4-hydroxyphenyl)ethanamide
  • Molecular Weight (kg)
    151.163
  • Phase
    s
  • PubChem ID
    1983
  • SMILES
    CC(=O)NC1=CC=C(C=C1)O
  • Synonyms

Physical Properties

  • Acentric factor
    0.8
  • Critical pressure (bar)
    42.6
  • Critical temperature (°C)
    462.85
  • Critical volume (m³/kmol)
    0.452
  • Dipole moment
  • Melting temperature (°C)
    169.8
  • Normal boiling temperature (°C)
    500

State-dependent Properties

  • API gravity
    -0.0802138
  • Compressibility factor
    0.00541
  • Density (kg/m³)
    1142.07
  • Dynamic viscosity (cP)
    0
  • Enthalpy of vaporization (mass) (kJ)
    575.563
  • Enthalpy of vaporization (molar) (kJ/kmol)
    8.7004e+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))
    176.555
  • Molar volume (m³/kmol)
    0.132358
  • Parachor
    6.6771e-5
  • Poynting correction factor
    1.00579
  • Prandtl number
  • Saturation pressure (bar)
    1.5261e-6
  • Saturation temperature (°C)
    256.667
  • Solubility parameter
    2.4469e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    1.1432
  • Specific heat capacity (kJ/kg·K)
    1.16798
  • Surface tension
    0.0488917
  • Thermal conductivity
  • Thermal diffusivity

Safety Properties

  • Autoignition temperature (°C)
    540
  • Flash point temperature (°C)
    -273.15
  • Lower flammability limit
    0.0122141
  • Upper flammability limit
    0.077726

Environmental Properties

  • Global warming potential
  • Ozone depletion potential