• Introduction

• Conversions

• Weight/liquid volume

• Diffusion coefficient

• Antoine's coeff.
• Conversion
• Calculation

• Vapour pressure

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Antoine's coefficients calculation from couple temperature/pressure

Input :
Temperature min
Temperature avg
Temperature max
Temperature Unit	Kelvin Celsius Fahrenheit Rankine
Vapour pressure min
Vapour pressure avg
Vapour pressure max
Pressure Unit	mmHg Bar mBar Pa kPa psia
Output :
Formula scale	log (base 10) ln (base e)
Pressure Unit	mmHg Bar mBar Pa kPa psia
Temperature Unit	Kelvin Celsius Fahrenheit Rankine
Results :
Antoine A
Antoine B
Antoine C

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How to use this calculation tool

This tool calculates Antoine's coefficients from couple temperature/pressure (min, avg and max). It gives valid Antoine's coefficient for formula log₁₀(P)=A-B/(C+T) (log base 10) or formula ln(P)=A-B/(C+T) (natural log) depending on output scale chosen.

For example, if you know that P_{Ethanol_273K}=11.7898 mmHg, P_{Ethanol_283K}=23.3053 mmHg and P_{Ethanol_293K}=43.6367 mmHg then Antoine's coefficients calculated with this tool to be used with formula ln(P)=A-B/(C+T) mmHg are A=18.91222, B=3804.13278 et C=-41.67519 to be used on temperature range 273K to 293K.