Properties of hydrofluoric acid
Thermophysical properties for hydrofluoric acid (CAS: 7664-39-3). 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
- AtomsF: 1, H: 1
- CAS7664-39-3
- FormulaFH
- ID7664-39-3
- InChIFH/h1H
- InChI KeyKRHYYFGTRYWZRS-UHFFFAOYSA-N
- IUPAC Namefluorane
- Molecular Weight (kg)20.0063
- Phaseg
- PubChem ID1.4917e+4
- SMILESF
- Synonyms
Physical Properties
- Acentric factor0.372
- Critical pressure (bar)64.848
- Critical temperature (°C)187.85
- Critical volume (m³/kmol)0.069
- Dipole moment1.82
- Melting temperature (°C)-83.55
- Normal boiling temperature (°C)20
State-dependent Properties
- API gravity14.9626
- Compressibility factor1
- Density (kg/m³)0.81774
- Dynamic viscosity (cP)0.0113112
- Enthalpy of vaporization (mass) (kJ)384.957
- Enthalpy of vaporization (molar) (kJ/kmol)7701.59
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient3.0056e-13
- Kinematic viscosity1.3832e-5
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))29.1379
- Molar volume (m³/kmol)24.4654
- Parachor6.4307e-6
- Poynting correction factor0.999767
- Prandtl number0.546753
- Saturation pressure (bar)1.28522
- Saturation temperature (°C)16.9814
- Solubility parameter1.5676e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity0.690402
- Specific heat capacity (kJ/kg·K)1.45643
- Surface tension0.00835295
- Thermal conductivity0.0301307
- Thermal diffusivity2.5299e-5
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit
- Upper flammability limit0.235
Environmental Properties
- Global warming potential
- Ozone depletion potential