Properties of isobutene

Identification

• Atoms
  C: 4, H: 8
• CAS
  115-11-7
• Formula
  C4H8
• ID
  115-11-7
• InChI
  C4H8/c1-4(2)3/h1H2,2-3H3
• InChI Key
  VQTUBCCKSQIDNK-UHFFFAOYSA-N
• IUPAC Name
  2-methylprop-1-ene
• Molecular Weight (kg)
  56.1063
• Phase
  g
• PubChem ID
  8255
• SMILES
  CC(=C)C
• SynonymsView 32 Synonyms

Physical Properties

• Acentric factor
  0.193
• Critical pressure (bar)
  40.098
• Critical temperature (°C)
  144.94
• Critical volume (m³/kmol)
  0.239808
• Dipole moment
  0.5
• Melting temperature (°C)
  -140.2
• Normal boiling temperature (°C)
  -7.00421

State-dependent Properties

• Compressibility factor
  1
• Density (kg/m³)
  2.29329
• Dynamic viscosity (cP)
  0.00784943
• Enthalpy of vaporization (mass) (kJ)
  358.892
• Enthalpy of vaporization (molar) (kJ/kmol)
  2.0136e+4
• Gibbs free energy (kJ/kmol)
  0
• Joule–Thomson coefficient
  9.8553e-14
• Kinematic viscosity
  3.4228e-6
• Molar enthalpy (kJ/kmol)
  0
• Molar entropy (kJ/(kmol·K))
  0
• Molar heat capacity (kJ/(kmol·K))
  88.8627
• Molar volume (m³/kmol)
  24.4654
• Parachor
• Poynting correction factor
• Prandtl number
  0.753026
• Saturation pressure (bar)
  3.04965
• Saturation temperature (°C)
  -7.00421
• Solubility parameter
• Specific enthalpy (kJ)
  0
• Specific entropy (kJ/kg·K)
  0
• Specific gravity
  1.93618
• Specific heat capacity (kJ/kg·K)
  1.58383
• Surface tension
  0.0117317
• Thermal conductivity
  0.0165096
• Thermal diffusivity
  4.5454e-6

Safety Properties

• Autoignition temperature (°C)
  483
• Flash point temperature (°C)
  -273.15
• Lower flammability limit
  0.016
• Upper flammability limit
  0.1

Environmental Properties

• Global warming potential
• Ozone depletion potential

Failed Properties:

• API gravityFailed