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Properties of tetramethoxysilane

Thermophysical properties for tetramethoxysilane (CAS: 681-84-5). 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: 4, H: 12, O: 4, Si: 1
  • CAS
    681-84-5
  • Formula
    C4H12O4Si
  • ID
    681-84-5
  • InChI
    C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3
  • InChI Key
    LFQCEHFDDXELDD-UHFFFAOYSA-N
  • IUPAC Name
    tetramethyl silicate
  • Molecular Weight (kg)
    152.221
  • Phase
    l
  • PubChem ID
    1.2682e+4
  • SMILES
    CO[Si](OC)(OC)OC
  • Synonyms

Physical Properties

  • Acentric factor
    0.4425
  • Critical pressure (bar)
    28.8
  • Critical temperature (°C)
    289.85
  • Critical volume (m³/kmol)
    0.464
  • Dipole moment
  • Melting temperature (°C)
    1.5
  • Normal boiling temperature (°C)
    120.1

State-dependent Properties

  • API gravity
    13.7083
  • Compressibility factor
    0.00645132
  • Density (kg/m³)
    964.438
  • Dynamic viscosity (cP)
    0.441985
  • Enthalpy of vaporization (mass) (kJ)
    274.845
  • Enthalpy of vaporization (molar) (kJ/kmol)
    4.1837e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.5761e-7
  • Kinematic viscosity
    4.5828e-7
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    241.051
  • Molar volume (m³/kmol)
    0.157834
  • Parachor
    6.1450e-5
  • Poynting correction factor
    1.00632
  • Prandtl number
    6.66533
  • Saturation pressure (bar)
    0.0240451
  • Saturation temperature (°C)
    120.154
  • Solubility parameter
    1.5791e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.965387
  • Specific heat capacity (kJ/kg·K)
    1.58356
  • Surface tension
    0.0223888
  • Thermal conductivity
    0.105007
  • Thermal diffusivity
    6.8756e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    21
  • Lower flammability limit
    0.0221774
  • Upper flammability limit
    0.141129

Environmental Properties

  • Global warming potential
  • Ozone depletion potential