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Properties of dodecamethylpentasiloxane

Thermophysical properties for dodecamethylpentasiloxane (CAS: 141-63-9). 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: 12, H: 36, O: 4, Si: 5
  • CAS
    141-63-9
  • Formula
    C12H36O4Si5
  • ID
    141-63-9
  • InChI
    C12H36O4Si5/c1-17(2,3)13-19(7,8)15-21(11,12)16-20(9,10)14-18(4,5)6/h1-12H3
  • InChI Key
    FBZANXDWQAVSTQ-UHFFFAOYSA-N
  • IUPAC Name
    bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethyl-silane
  • Molecular Weight (kg)
    384.839
  • Phase
    l
  • PubChem ID
    8853
  • SMILES
    C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
  • Synonyms

Physical Properties

  • Acentric factor
    0.723
  • Critical pressure (bar)
    9.6112
  • Critical temperature (°C)
    355.81
  • Critical volume (m³/kmol)
    1.42857
  • Dipole moment
  • Melting temperature (°C)
    -80
  • Normal boiling temperature (°C)
    229.882

State-dependent Properties

  • API gravity
    29.305
  • Compressibility factor
    0.0180808
  • Density (kg/m³)
    869.98
  • Dynamic viscosity (cP)
    1.81049
  • Enthalpy of vaporization (mass) (kJ)
    178.358
  • Enthalpy of vaporization (molar) (kJ/kmol)
    6.8639e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.5040e-7
  • Kinematic viscosity
    2.0811e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    657.845
  • Molar volume (m³/kmol)
    0.442354
  • Parachor
    1.6442e-4
  • Poynting correction factor
    1.01824
  • Prandtl number
    27.8576
  • Saturation pressure (bar)
    6.3833e-5
  • Saturation temperature (°C)
    229.876
  • Solubility parameter
    1.2230e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.870836
  • Specific heat capacity (kJ/kg·K)
    1.7094
  • Surface tension
    0.0177455
  • Thermal conductivity
    0.111095
  • Thermal diffusivity
    7.4704e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    79
  • Lower flammability limit
    0.00601487
  • Upper flammability limit
    0.0382765

Environmental Properties

  • Global warming potential
    0.439
  • Ozone depletion potential