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Antoine Equation Coefficient and Calculator

Thermodynamics and Heat Transfer Resources

Antoine Equation Coefficient and Calculator

The Antoine equation is a class of semi-empirical correlations describing the relation between vapor pressure and temperature for pure substances. The Antoine equation is derived from the Clausius–Clapeyron relation.

Preview Antoine Coefficient and Calculator

The Antoine equation is

Eq. 1
log₁₀ p = A - B / ( C + T )

Eq. 2
T = B / ( A - log₁₀ p ) - C

where

p = vapor pressure, mmHg
T = Temperature (in °C or in K according to the value of C)
A , B and C = component-specific constants.

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