Properties of sulfuric acid
Thermophysical properties for sulfuric acid (CAS: 7664-93-9). 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
Need properties at a different state? Use our interactive calculator.
Open CalculatorIdentification
- AtomsH: 2, O: 4, S: 1
- CAS7664-93-9
- FormulaH2O4S
- ID7664-93-9
- InChIH2O4S/c1-5(2,3)4/h(H2,1,2,3,4)
- InChI KeyQAOWNCQODCNURD-UHFFFAOYSA-N
- IUPAC Namesulfuric acid
- Molecular Weight (kg)98.0785
- Phasel
- PubChem ID1118
- SMILESOS(=O)(=O)O
- Synonyms
Physical Properties
- Acentric factor0.494
- Critical pressure (bar)64
- Critical temperature (°C)650.85
- Critical volume (m³/kmol)0.1777
- Dipole moment2.72
- Melting temperature (°C)4.155
- Normal boiling temperature (°C)337
State-dependent Properties
- API gravity-54.2639
- Compressibility factor0.00219034
- Density (kg/m³)1830.24
- Dynamic viscosity (cP)0.987063
- Enthalpy of vaporization (mass) (kJ)930.848
- Enthalpy of vaporization (molar) (kJ/kmol)9.1296e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-5.8908e-7
- Kinematic viscosity5.3931e-7
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))90.9701
- Molar volume (m³/kmol)0.0535876
- Parachor2.5810e-5
- Poynting correction factor1.00219
- Prandtl number4.17833
- Saturation pressure (bar)6.6309e-8
- Saturation temperature (°C)338.146
- Solubility parameter4.0711e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.83205
- Specific heat capacity (kJ/kg·K)0.927524
- Surface tension0.0533458
- Thermal conductivity0.219113
- Thermal diffusivity1.2907e-7
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit-0.128467
- Upper flammability limit0.24988
Environmental Properties
- Global warming potential
- Ozone depletion potential