Properties of 2-toluenesulfonic acid
Thermophysical properties for 2-toluenesulfonic acid (CAS: 88-20-0). 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: 7, H: 8, O: 3, S: 1
- CAS88-20-0
- FormulaC7H8O3S
- ID88-20-0
- InChIC7H8O3S/c1-6-4-2-3-5-7(6)11(8,9)10/h2-5H,1H3,(H,8,9,10)
- InChI KeyLBLYYCQCTBFVLH-UHFFFAOYSA-N
- IUPAC Name2-methylbenzenesulfonic acid
- Molecular Weight (kg)172.202
- Phases
- PubChem ID6925
- SMILESCC1=CC=CC=C1S(=O)(=O)O
- Synonyms
Physical Properties
- Acentric factor0.480966
- Critical pressure (bar)26.6702
- Critical temperature (°C)294.009
- Critical volume (m³/kmol)0.438
- Dipole moment
- Melting temperature (°C)67.5
- Normal boiling temperature (°C)128.8
State-dependent Properties
- API gravity-11.0554
- Compressibility factor0.00555783
- Density (kg/m³)1266.42
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)254.846
- Enthalpy of vaporization (molar) (kJ/kmol)4.3885e+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))172.855
- Molar volume (m³/kmol)0.135975
- Parachor5.8803e-5
- Poynting correction factor1.00599
- Prandtl number
- Saturation pressure (bar)0.0128382
- Saturation temperature (°C)128.6
- Solubility parameter1.6723e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.26767
- Specific heat capacity (kJ/kg·K)1.0038
- Surface tension0.0242818
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit0.0149864
- Upper flammability limit0.0953678
Environmental Properties
- Global warming potential
- Ozone depletion potential