Abraham model correlations for describing the partition of organic compounds from water into the methyl ethyl ketone extraction solvent

ABSTRACT

Experimental water-to-methyl ethyl ketone partition coefficients have been determined for 34 different organic solutes at ambient room temperature based on gas–liquid chromatographic measurements. Updated Abraham model correlations were determined for describing solute transfer into methyl ethyl ketone by combining the measured partition coefficient data determined in the present study with published experimental values taken from chemical and engineering literature. Experimental data for 48 compounds were used in determining the revised Abraham model correlations. The revised mathematical correlations were determined to back-calculate the observed partition coefficient data to within an overall average standard deviation of 0.17 log units or less. The partitioning characteristics of the water-to-methyl ethyl ketone system are compared to the characteristics of two other biphasic water-to-ketone partitioning systems.

KEYWORDS:

• Partition coefficient
• Abraham model correlations
• extraction
• methyl ethyl ketone extraction solvent

Acknowledgements

Katherine Smart acknowledges the National Institute of Justice, Office of Justice Programs, U.S. Department of Justice Award (No. 2019-R2-CX-0043) for financial support. The opinions, findings, and conclusions or recommendations expressed in this publication are those of the authors and do not necessarily reflect those of the Department of Justice.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Institute of Justice [No. 2019-R2-CX-0043].