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Properties of dodecamethylcyclohexasiloxane

Thermophysical properties for dodecamethylcyclohexasiloxane (CAS: 540-97-6). 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: 6, Si: 6
  • CAS
    540-97-6
  • Formula
    C12H36O6Si6
  • ID
    540-97-6
  • InChI
    C12H36O6Si6/c1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h1-12H3
  • InChI Key
    IUMSDRXLFWAGNT-UHFFFAOYSA-N
  • IUPAC Name
    2,2,4,4,6,6,8,8,10,10,12,12-dodecamethyl-1,3,5,7,9,11-hexaoxa-2,4,6,8,10,12-hexasilacyclododecane
  • Molecular Weight (kg)
    444.924
  • Phase
    l
  • PubChem ID
    1.0911e+4
  • SMILES
    C[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)C
  • Synonyms

Physical Properties

  • Acentric factor
    0.736
  • Critical pressure (bar)
    9.61
  • Critical temperature (°C)
    372.63
  • Critical volume (m³/kmol)
    1.59416
  • Dipole moment
  • Melting temperature (°C)
    -3
  • Normal boiling temperature (°C)
    244.96

State-dependent Properties

  • API gravity
    12.92
  • Compressibility factor
    0.018778
  • Density (kg/m³)
    968.463
  • Dynamic viscosity (cP)
    6.73076
  • Enthalpy of vaporization (mass) (kJ)
    158.396
  • Enthalpy of vaporization (molar) (kJ/kmol)
    7.0474e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.3364e-7
  • Kinematic viscosity
    6.9499e-6
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    701.772
  • Molar volume (m³/kmol)
    0.459412
  • Parachor
    1.7388e-4
  • Poynting correction factor
    1.01895
  • Prandtl number
    90.5694
  • Saturation pressure (bar)
    3.2892e-5
  • Saturation temperature (°C)
    244.96
  • Solubility parameter
    1.2166e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.969415
  • Specific heat capacity (kJ/kg·K)
    1.57729
  • Surface tension
    0.0190222
  • Thermal conductivity
    0.117218
  • Thermal diffusivity
    7.6736e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    93
  • Lower flammability limit
    0.00634518
  • Upper flammability limit
    0.0403784

Environmental Properties

  • Global warming potential
    0.51
  • Ozone depletion potential