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Properties of hexamethyldisiloxane

Thermophysical properties for hexamethyldisiloxane (CAS: 107-46-0). 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: 18, O: 1, Si: 2
  • CAS
    107-46-0
  • Formula
    C6H18OSi2
  • ID
    107-46-0
  • InChI
    C6H18OSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
  • InChI Key
    UQEAIHBTYFGYIE-UHFFFAOYSA-N
  • IUPAC Name
    trimethyl(trimethylsilyloxy)silane
  • Molecular Weight (kg)
    162.378
  • Phase
    l
  • PubChem ID
    2.4764e+4
  • SMILES
    C[Si](C)(C)O[Si](C)(C)C
  • Synonyms

Physical Properties

  • Acentric factor
    0.418
  • Critical pressure (bar)
    19.3113
  • Critical temperature (°C)
    245.55
  • Critical volume (m³/kmol)
    0.604961
  • Dipole moment
  • Melting temperature (°C)
    -66
  • Normal boiling temperature (°C)
    100.508

State-dependent Properties

  • API gravity
    52.1886
  • Compressibility factor
    0.00873684
  • Density (kg/m³)
    759.66
  • Dynamic viscosity (cP)
    0.486535
  • Enthalpy of vaporization (mass) (kJ)
    228.872
  • Enthalpy of vaporization (molar) (kJ/kmol)
    3.7164e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.0625e-7
  • Kinematic viscosity
    6.4046e-7
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    308.425
  • Molar volume (m³/kmol)
    0.21375
  • Parachor
    7.5986e-5
  • Poynting correction factor
    1.00829
  • Prandtl number
    8.95631
  • Saturation pressure (bar)
    0.0557596
  • Saturation temperature (°C)
    100.508
  • Solubility parameter
    1.2738e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.760407
  • Specific heat capacity (kJ/kg·K)
    1.89943
  • Surface tension
    0.0154189
  • Thermal conductivity
    0.103183
  • Thermal diffusivity
    7.1510e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    -8.99901
  • Lower flammability limit
    0.0113169
  • Upper flammability limit
    0.0720165

Environmental Properties

  • Global warming potential
    1.72
  • Ozone depletion potential