Properties of sodium hydroxide
Thermophysical properties for sodium hydroxide (CAS: 1310-73-2). 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
- AtomsH: 1, Na: 1, O: 1
- CAS1310-73-2
- FormulaHNaO
- ID1310-73-2
- InChINa.H2O/h;1H2/q+1;/p-1
- InChI KeyHEMHJVSKTPXQMS-UHFFFAOYSA-M
- IUPAC Namesodium;hydroxide
- Molecular Weight (kg)39.9971
- Phases
- PubChem ID1.4798e+4
- SMILES[OH-].[Na+]
- Synonyms
Physical Properties
- Acentric factor0.477
- Critical pressure (bar)250
- Critical temperature (°C)2546.85
- Critical volume (m³/kmol)0.2
- Dipole moment
- Melting temperature (°C)323
- Normal boiling temperature (°C)1388
State-dependent Properties
- API gravity74.3932
- Compressibility factor7.6753e-4
- Density (kg/m³)2130.01
- Dynamic viscosity (cP)0
- Enthalpy of vaporization (mass) (kJ)9396.58
- Enthalpy of vaporization (molar) (kJ/kmol)3.7584e+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))59.5325
- Molar volume (m³/kmol)0.0187779
- Parachor4.7221e-5
- Poynting correction factor1.00239
- Prandtl number
- Saturation pressure (bar)1.9933e-43
- Saturation temperature (°C)1411.89
- Solubility parameter8.0029e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity2.1321
- Specific heat capacity (kJ/kg·K)1.48842
- Surface tension0.426466
- 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