Clevenger apparatus

The Clevenger apparatus is named after its inventor, Joseph Franklin Clevenger. This device allows the extraction of essential oils from plant samples. It consists of 2 elements: a flask and a modified glass piece (vertical tube combined with a condenser + glass stopcock burette). A return tube for the aqueous part of the distillate connects the lower end of the burette to the vertical tube. Process: The flask contains water that is boiled along with the plant to be extracted. The steam rises in the apparatus to the condenser, and the condensed liquid falls back into the burette. The oil floats on the water, which is gradually returned to the heated flask through the diagonal conduit. After a few hours of extraction, it is possible to directly measure the volume of oil collected in the burette.

This glassware set consists of: - a round-bottom flask 250 ml with a 29/32 joint, - a 300 mm Allihn condenser + a 10 mL burette with 0.1 mL graduation. 29/32 Joint clip not included. To be ordered separately. See ref 703673.