Looking for extended coefficients of Antoine Equation

  • Thread starter Daniel Messina
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In summary, the person is looking for a database or resource containing extended Antoine coefficients for D, E, and F. Some potential resources include the NIST Chemistry WebBook and the AIChE database. They are also advised to reach out to their local university or research institution and the authors of a paper they shared.
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Daniel Messina
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Hi,

As the thread topic suggests, I am looking for a database, or anything really, with lists of the extended Antoine Coefficients.

Essentially http://www.eng.auburn.edu/~drmills/mans486/Diffusion%20Tube/Antoine_coefficient_table.PDF but for D,E, and F.

Any help would be greatly appreciated,

Thanks.
 
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  • #2


Hello there,

Thank you for reaching out to the scientific community for help with your search for extended Antoine coefficients. I understand that you are looking for a database or any other resource that contains lists of the extended Antoine coefficients for D, E, and F. I would be happy to assist you in your search.

After conducting some research, I have found a few resources that may be helpful to you. One option is the NIST Chemistry WebBook, which contains a large collection of thermophysical and chemical property data for various compounds, including Antoine coefficients. You can search for your specific compounds and find the corresponding Antoine coefficients. Another resource is the American Institute of Chemical Engineers (AIChE) database, which also has a collection of Antoine coefficients for various compounds.

Additionally, I would suggest reaching out to your local university or research institution to see if they have any databases or resources that contain the extended Antoine coefficients you are looking for. You can also try contacting the authors of the paper you shared (http://www.eng.auburn.edu/~drmills/mans486/Diffusion Tube/Antoine_coefficient_table.PDF) to see if they have any additional information or resources.

I hope these suggestions are helpful to you in your search. Best of luck in finding the extended Antoine coefficients you need. Let me know if you have any further questions or need any more assistance.
 

FAQ: Looking for extended coefficients of Antoine Equation

What is Antoine Equation?

Antoine Equation is an empirical formula that relates the vapor pressure of a pure substance to its temperature. It is commonly used in thermodynamics and is named after French chemist Charles Antoine.

Why are extended coefficients needed for Antoine Equation?

Extended coefficients are needed for Antoine Equation when the temperature range of interest is outside the range for which the equation was originally developed. This allows for more accurate predictions of vapor pressure at higher or lower temperatures.

How are extended coefficients of Antoine Equation determined?

Extended coefficients of Antoine Equation can be determined experimentally by collecting data on the vapor pressure of a substance at different temperatures and fitting it to the equation. They can also be calculated using thermodynamic principles and molecular properties of the substance.

What are the limitations of using extended coefficients in Antoine Equation?

The accuracy of using extended coefficients in Antoine Equation decreases as the temperature range becomes more extreme. Additionally, the extended coefficients may not be applicable for substances that have significantly different molecular structures or properties compared to the substance for which the equation was originally developed.

What are some common applications of Antoine Equation?

Antoine Equation is commonly used in chemical engineering and process design to predict the vapor pressure of a substance at different temperatures. It is also used in the development of refrigerant systems, as well as in the chemical and pharmaceutical industries for the design and optimization of distillation processes.

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