Properties of sodium thiosulfate
Thermophysical properties for sodium thiosulfate (CAS: 7772-98-7). 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
- AtomsNa: 2, O: 3, S: 2
- CAS7772-98-7
- FormulaNa2O3S2
- ID7772-98-7
- InChI2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
- InChI KeyAKHNMLFCWUSKQB-UHFFFAOYSA-L
- IUPAC Namedisodium;dioxido-oxo-sulfanylidene-lambda6-sulfane
- Molecular Weight (kg)158.108
- Phases
- PubChem ID2.4477e+4
- SMILESO=S([O-])([O-])=S.[Na+].[Na+]
- Synonyms
Physical Properties
- Acentric factor
- Critical pressure (bar)0
- Critical temperature (°C)-273.15
- Critical volume (m³/kmol)0
- Dipole moment
- Melting temperature (°C)48
- Normal boiling temperature (°C)-273.15
State-dependent Properties
- Compressibility factor0.00382397
- Density (kg/m³)1690
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)0
- Enthalpy of vaporization (molar) (kJ/kmol)
- 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))146.022
- Molar volume (m³/kmol)0.093555
- Parachor
- Poynting correction factor
- Prandtl number
- Saturation pressure (bar)0
- Solubility parameter
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.69166
- Specific heat capacity (kJ/kg·K)0.923558
- Surface tension
- Thermal conductivity
- Thermal diffusivity
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit
- Upper flammability limit
Environmental Properties
- Global warming potential
- Ozone depletion potential
Failed Properties:
- API gravityFailed
- Saturation temperature (°C)Failed