Properties of dimethyl sulfoxide
Thermophysical properties for dimethyl sulfoxide (CAS: 67-68-5). 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: 2, H: 6, O: 1, S: 1
- CAS67-68-5
- FormulaC2H6OS
- ID67-68-5
- InChIC2H6OS/c1-4(2)3/h1-2H3
- InChI KeyIAZDPXIOMUYVGZ-UHFFFAOYSA-N
- IUPAC Namemethylsulfinylmethane
- Molecular Weight (kg)78.1334
- Phasel
- PubChem ID679
- SMILESCS(=O)C
- Synonyms
Physical Properties
- Acentric factor0.3319
- Critical pressure (bar)46
- Critical temperature (°C)433.85
- Critical volume (m³/kmol)0.213
- Dipole moment3.96
- Melting temperature (°C)18.4
- Normal boiling temperature (°C)191.9
State-dependent Properties
- API gravity-3.29149
- Compressibility factor0.00291316
- Density (kg/m³)1096.28
- Dynamic viscosity (cP)1.98443
- Enthalpy of vaporization (mass) (kJ)684.435
- Enthalpy of vaporization (molar) (kJ/kmol)5.3477e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-3.4201e-7
- Kinematic viscosity1.8101e-6
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))153.098
- Molar volume (m³/kmol)0.0712716
- Parachor3.2540e-5
- Poynting correction factor1.00292
- Prandtl number17.7543
- Saturation pressure (bar)8.0192e-4
- Saturation temperature (°C)190.743
- Solubility parameter2.6750e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.09736
- Specific heat capacity (kJ/kg·K)1.95944
- Surface tension0.0429499
- Thermal conductivity0.21901
- Thermal diffusivity1.0196e-7
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)86.7144
- Lower flammability limit0.0294285
- Upper flammability limit0.142675
Environmental Properties
- Global warming potential
- Ozone depletion potential