Properties of nitric acid
Thermophysical properties for nitric acid (CAS: 7697-37-2). 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, N: 1, O: 3
- CAS7697-37-2
- FormulaHNO3
- ID7697-37-2
- InChIHNO3/c2-1(3)4/h(H,2,3,4)
- InChI KeyGRYLNZFGIOXLOG-UHFFFAOYSA-N
- IUPAC Namenitric acid
- Molecular Weight (kg)63.0128
- Phasel
- PubChem ID944
- SMILES[N+](=O)(O)[O-]
- Synonyms
Physical Properties
- Acentric factor0.7144
- Critical pressure (bar)68.901
- Critical temperature (°C)246.85
- Critical volume (m³/kmol)0.133
- Dipole moment2.17
- Melting temperature (°C)-42
- Normal boiling temperature (°C)83
State-dependent Properties
- API gravity-38.0654
- Compressibility factor0.00170238
- Density (kg/m³)1512.94
- Dynamic viscosity (cP)0.576142
- Enthalpy of vaporization (mass) (kJ)737.526
- Enthalpy of vaporization (molar) (kJ/kmol)4.6474e+4
- Gibbs free energy (kJ/kmol)0
- Joule–Thomson coefficient-6.5007e-7
- Kinematic viscosity3.8081e-7
- Molar enthalpy (kJ/kmol)0
- Molar entropy (kJ/(kmol·K))0
- Molar heat capacity (kJ/(kmol·K))64.0699
- Molar volume (m³/kmol)0.0416493
- Parachor1.8669e-5
- Poynting correction factor1.00156
- Prandtl number3.67673
- Saturation pressure (bar)0.0834359
- Saturation temperature (°C)82.6007
- Solubility parameter3.2501e+4
- Specific enthalpy (kJ)0
- Specific entropy (kJ/kg·K)0
- Specific gravity1.51443
- Specific heat capacity (kJ/kg·K)1.01677
- Surface tension0.0400983
- Thermal conductivity0.159328
- Thermal diffusivity1.0357e-7
Safety Properties
- Autoignition temperature (°C)-273.15
- Flash point temperature (°C)-273.15
- Lower flammability limit-1.07842
- Upper flammability limit0.23697
Environmental Properties
- Global warming potential
- Ozone depletion potential