HNO3 module

The thermo dynamics of the HNO3-H2O system are required in numerous chemical and process engineering applications. Knowledge of the composition of the vapour/liquid equilibrium is the basis for the thermal design of the equipment.

Program features

The HNO3 module calculates the phase equilibrium and the physical properties of HNO3-H2O systems.

The following physical properties can be determined as a function of pressure, temperature and composition:

  • Density
  • Specific heat capacity
  • Dynamic viscosity
  • Kinematic viscosity
  • Thermal conductivity
  • Prandtl number
  • Thermal diffusivity
  • Surface tension
  • Coefficient of thermal expansion
  • Saturation pressure
  • Partial pressure of water and acid

The data on which it is based are determined or interpolated from data tables and can be extended with measurement data.

Price: see price list


  • Robert H. Perry, Cecil H. Chilton, “Perry’s Chemical Engineers’ Handbook” 5th Edition,Mc Graw Hill 1973;
  • Robert H. Perry, Don Green, “Perry’s Chemical Engineers’ Handbook” 6th Edition / Mc Graw Hill 1984;
  • Gmelin 18. edition
  • Landolt-Börnstein 6. edition volume II

see also:

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