Properties of isophthalic acid
Thermophysical properties for isophthalic acid (CAS: 121-91-5). 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
Need properties at a different state? Use our interactive calculator.
Open CalculatorIdentification
- AtomsC: 8, H: 6, O: 4
- CAS121-91-5
- FormulaC8H6O4
- ID121-91-5
- InChIC8H6O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10)(H,11,12)
- InChI KeyQQVIHTHCMHWDBS-UHFFFAOYSA-N
- IUPAC Namebenzene-1,3-dicarboxylic acid
- Molecular Weight (kg)166.131
- Phases
- PubChem ID8496
- SMILESC1=CC(=CC(=C1)C(=O)O)C(=O)O
- Synonyms
Physical Properties
- Acentric factor1.061
- Critical pressure (bar)39.5
- Critical temperature (°C)733.85
- Critical volume (m³/kmol)0.424
- Dipole moment2.27
- Melting temperature (°C)344.5
- Normal boiling temperature (°C)479.85
State-dependent Properties
- API gravity-23.708
- Compressibility factor0.00488635
- Density (kg/m³)1389.67
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)1041.83
- Enthalpy of vaporization (molar) (kJ/kmol)1.7308e+5
- 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))164.197
- Molar volume (m³/kmol)0.119547
- Parachor7.1229e-5
- Poynting correction factor1.0052
- Prandtl number
- Saturation pressure (bar)3.2527e-15
- Saturation temperature (°C)479.994
- Solubility parameter3.6657e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.39104
- Specific heat capacity (kJ/kg·K)0.98836
- Surface tension0.0970432
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit0.015976
- Upper flammability limit0.0914003
Environmental Properties
- Global warming potential
- Ozone depletion potential