Extension of The Antoine Equations
To overcome the limits of the Antoine equation some simple extension by additional terms are used:
The additional parameters increase the flexibility of the equation and allow the description of the entire vapor pressure curve. The extended equation forms can be reduced to the original form by setting the additional parameters D, E and F to 0.
A further difference is that the extended equations use the e as base for the exponential function and the natural logarithm. This doesn't affect the equation form.
See also the Wagner Equation
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