Abstract

Air−water partitioning of lower N-methylated fatty acid amides (N-methylformamide, N-methylacetamide, N,N-dimethylformamide, and N,N-dimethylacetamide) was examined at several temperatures in the range from (333 to 373) K employing comparative ebulliometry, differential distillation, and the method of circulation still as suitable experimental techniques. Results are reported in the form of limiting (infinite dilution) relative volatility, limiting activity coefficient, Henry’s law constant, and air−water partition coefficient. For each amide, the present air−water partitioning data and some other relevant VLE measurements from the literature were combined with existing calorimetric data on respective derivative thermal properties and correlated simultaneously by a suitable model equation. In the entire treatment, precautions were taken to minimize the effect of uncertain vapor pressures of pure amides at lower temperatures. Recommended thermodynamically consistent temperature dependences of the air−water...

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.