Properties of phthalic anhydride
Thermophysical properties for phthalic anhydride (CAS: 85-44-9). 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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Open CalculatorIdentification
- AtomsC: 8, H: 4, O: 3
- CAS85-44-9
- FormulaC8H4O3
- ID85-44-9
- InChIC8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
- InChI KeyLGRFSURHDFAFJT-UHFFFAOYSA-N
- IUPAC Name2-benzofuran-1,3-dione
- Molecular Weight (kg)148.116
- Phases
- PubChem ID6811
- SMILESC1=CC=C2C(=C1)C(=O)OC2=O
- Synonyms
Physical Properties
- Acentric factor0.708
- Critical pressure (bar)47.2
- Critical temperature (°C)517.85
- Critical volume (m³/kmol)0.421
- Dipole moment
- Melting temperature (°C)131.4
- Normal boiling temperature (°C)285.3
State-dependent Properties
- API gravity-15.4215
- Compressibility factor0.00427942
- Density (kg/m³)1414.7
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)429.73
- Enthalpy of vaporization (molar) (kJ/kmol)6.3650e+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))160
- Molar volume (m³/kmol)0.104698
- Parachor5.9274e-5
- Poynting correction factor1.00498
- Prandtl number
- Saturation pressure (bar)1.0665e-5
- Saturation temperature (°C)284.091
- Solubility parameter2.2426e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.41609
- Specific heat capacity (kJ/kg·K)1.08024
- Surface tension0.0552967
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)151.85
- Lower flammability limit0.017
- Upper flammability limit0.105
Environmental Properties
- Global warming potential
- Ozone depletion potential