362L Steam Distillation of an Essential Oil (#2)May 4, 2021 Off By editorialteam
An herb (approx. 5 grams) is steam distilled. The essential oil is extracted from the distillate with DCM, which is then removed by rotovap. Two spotting chemical tests (Baeyer’s and 2,4-DNP) and IR spectroscopy are used to analyze the steam-distilled DCM-extracted essential oil.
The term “steam distillation” is used loosely, more accurately the process is a hydrodistillation since the water and herb are contained in the same vessel.
Educational, non-profit purposes only. Safety goggles, protective clothing, and use of a chemical fume are required. Not intended for replication beyond Eastern Kentucky University.
Chemistry lab at Eastern Kentucky University, U.S.