Properties of hexamethylcyclotrisiloxane

Identification

• Atoms
  C: 6, H: 18, O: 3, Si: 3
• CAS
  541-05-9
• Formula
  C6H18O3Si3
• ID
  541-05-9
• InChI
  C6H18O3Si3/c1-10(2)7-11(3,4)9-12(5,6)8-10/h1-6H3
• InChI Key
  HTDJPCNNEPUOOQ-UHFFFAOYSA-N
• IUPAC Name
  2,2,4,4,6,6-hexamethyl-1,3,5,2,4,6-trioxatrisilinane
• Molecular Weight (kg)
  222.462
• Phase
  s
• PubChem ID
  1.0914e+4
• SMILES
  C[Si]1(O[Si](O[Si](O1)(C)C)(C)C)C
• SynonymsView 11 Synonyms

Physical Properties

• Acentric factor
  0.5976
• Critical pressure (bar)
  17.9
• Critical temperature (°C)
  280.85
• Critical volume (m³/kmol)
  0.706
• Dipole moment
• Melting temperature (°C)
  64.5
• Normal boiling temperature (°C)
  135.1

State-dependent Properties

• API gravity
  18.0949
• Compressibility factor
  0.00891544
• Density (kg/m³)
  1019.91
• Dynamic viscosity (cP)
  0
• Enthalpy of vaporization (mass) (kJ)
  210.905
• Enthalpy of vaporization (molar) (kJ/kmol)
  4.6918e+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))
  263.895
• Molar volume (m³/kmol)
  0.21812
• Parachor
  8.7856e-5
• Poynting correction factor
  1.0097
• Prandtl number
• Saturation pressure (bar)
  0.00578307
• Solubility parameter
  1.3676e+4
• Specific enthalpy (kJ)
  0
• Specific entropy (kJ/kg·K)
  0
• Specific gravity
  1.02091
• Specific heat capacity (kJ/kg·K)
  1.18625
• Surface tension
  0.0179777
• Thermal conductivity
• Thermal diffusivity

Safety Properties

• Autoignition temperature (°C)
  -273.15
• Flash point temperature (°C)
  13.9477
• Lower flammability limit
  0.0125456
• Upper flammability limit
  0.0798358

Environmental Properties

• Global warming potential
  4.14
• Ozone depletion potential

Failed Properties:

• Saturation temperature (°C)Failed