Enthalpy tables for IPA

[pianoman1]

I'm a mechanical engineer dabbling in some distillation calcs because no-one else is available. The issue is evaporating IPA off a mix with water, and I can find single, nominal values of enthalpy of evaporation for IPA, but not a complete table, like the steam tables. Am I looking for something that doesn't exist? I need to look at various scenarios at different pressures and temperatures.

Thanks for any feedback.

Scott

 

[Latexman]

I know several chemicals with acronym IPA - isopropyl alcohol, isopropyl acetate, isopropyl acrylate. Which one?

Good luck,
Latexman

Technically, the glass is always full - 1/2 air and 1/2 water.

 

[racookpe1978]

bah. IPA's?

I prefer darker smoother brews so this particular problem is ill-relevent. 8<)

 

[pianoman1]

Sorry, Isopropyl Alcohol.

This time of year, Porter's are nice, but I still like a nice, hoppy IPA.

 

[Latexman]

I googled isopropanol water enthalpy diagram, and got the attachment below.

Maybe you should try it?

Good luck,
Latexman

Technically, the glass is always full - 1/2 air and 1/2 water.

 

[pianoman1]

Thanks. I was looking for pure IPA enthalpy tables, which I could not find, but this looks useful. I'll see if it solves my problem.

 

[Latexman]

That enthalpy diagram has the IPA/water vapor/liquid equilibrium data built into it. See where the curves cross the line y = x (vapor concentration = liquid concentration), that's the azeotrope at the 3 pressures.

Good luck,
Latexman

Technically, the glass is always full - 1/2 air and 1/2 water.

 

[25362]

Patiently searching the following link may satisfy your query

http://terpconnect.umd.edu/~nsw/chbe301/chap02.pdf

 

[pianoman1]

Thanks you!