Where to get UNIFAC Parameters Table?

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The discussion centers on the difficulty in locating the UNIFAC-VLE Subgroup Parameters Table online. A user provides a link to an Excel table containing parameters sourced from free VLECALC software. There are inquiries about how to categorize specific compounds like butene and dimethylformamide within the UNIFAC VLE method. Additionally, users seek VLE data for compounds such as 1,4,5,6-tetrahydropyrimidine and 1,3-diaminopropane, noting the absence of pyrimidine data in the provided resource. The conversation highlights the need for comprehensive data on various chemical compounds for accurate modeling.
phantom19
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Hello..I am looking for UNIFAC-VLE Subgroup Parameters Table online but can't find any..where can I get it?

By the way..how should I categorize C=C compound for example butene and compound like dimethylformamide when using UNIFAC VLE method?

Thanks for helping...
 
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You can download an Excel table with parameters from my webpage in:

http://www.fsalazar.bizland.com/xls/UNIFAC.xls

That information was obtained from free VLECALC SOFTWARE.



phantom19 said:
Hello..I am looking for UNIFAC-VLE Subgroup Parameters Table online but can't find any..where can I get it?

By the way..how should I categorize C=C compound for example butene and compound like dimethylformamide when using UNIFAC VLE method?

Thanks for helping...
 
I need to find VLE data for 1,4,5,6 - tetrahydropyrimidine, 1,3-diaminopropane. For the second compound i can obtain UNIFAC parameters. But for pyrimidine, I don't know where to find it. In the link given www.fsalazar.bizland.com/xls/UNIFAC.xls, pyridine is given, not pyrimidine!

Please help!

Thank you very much!
 

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