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Properties of hexamethyldisilazane

Thermophysical properties for hexamethyldisilazane (CAS: 999-97-3). 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: 19, N: 1, Si: 2
  • CAS
    999-97-3
  • Formula
    C6H19NSi2
  • ID
    999-97-3
  • InChI
    C6H19NSi2/c1-8(2,3)7-9(4,5)6/h7H,1-6H3
  • InChI Key
    FFUAGWLWBBFQJT-UHFFFAOYSA-N
  • IUPAC Name
    [dimethyl-(trimethylsilylamino)silyl]methane
  • Molecular Weight (kg)
    161.393
  • Phase
    l
  • PubChem ID
    1.3838e+4
  • SMILES
    C[Si](C)(C)N[Si](C)(C)C
  • Synonyms

Physical Properties

  • Acentric factor
    0.51
  • Critical pressure (bar)
    19.2
  • Critical temperature (°C)
    270.85
  • Critical volume (m³/kmol)
    0.613
  • Dipole moment
  • Melting temperature (°C)
    -78
  • Normal boiling temperature (°C)
    125

State-dependent Properties

  • API gravity
    49.9639
  • Compressibility factor
    0.00855241
  • Density (kg/m³)
    771.336
  • Dynamic viscosity (cP)
    0.354224
  • Enthalpy of vaporization (mass) (kJ)
    261.612
  • Enthalpy of vaporization (molar) (kJ/kmol)
    4.2222e+4
  • Gibbs free energy (kJ/kmol)
    0
  • Joule–Thomson coefficient
    -4.7708e-7
  • Kinematic viscosity
    4.5923e-7
  • Molar enthalpy (kJ/kmol)
    0
  • Molar entropy (kJ/(kmol·K))
    0
  • Molar heat capacity (kJ/(kmol·K))
    298.734
  • Molar volume (m³/kmol)
    0.209238
  • Parachor
    7.7462e-5
  • Poynting correction factor
    1.00845
  • Prandtl number
    6.40426
  • Saturation pressure (bar)
    0.0164915
  • Saturation temperature (°C)
    125.398
  • Solubility parameter
    1.3782e+4
  • Specific enthalpy (kJ)
    0
  • Specific entropy (kJ/kg·K)
    0
  • Specific gravity
    0.772094
  • Specific heat capacity (kJ/kg·K)
    1.85097
  • Surface tension
    0.01815
  • Thermal conductivity
    0.102378
  • Thermal diffusivity
    7.1708e-8

Safety Properties

  • Autoignition temperature (°C)
    -273.15
  • Flash point temperature (°C)
    11
  • Lower flammability limit
    0.0105425
  • Upper flammability limit
    0.0670884

Environmental Properties

  • Global warming potential
  • Ozone depletion potential