Kimble Variable Reflux Vacuum Distillation Head 29/42 Upper 24/40 Lower Joints with Glass Stopcock

The Kimble 518500-2440 Variable Reflux Vacuum Distillation Head is a specialized piece of glassware used to control the ratio of condensed vapor that is returned to the reaction vessel (reflux) versus the amount that is collected (distillate). A key feature of this distillation head is its ability to control the reflux ratio. By adjusting the position of the glass stopcock, a user can direct the condensed liquid to either return to the flask or be collected in a receiver. The design allows for the entire apparatus to be evacuated, making it suitable for distilling high-boiling-point liquids under reduced pressure. This distillation head is an essential tool for any laboratory performing complex organic syntheses or purifications. Its primary applications include fractional distillation, purification, and reaction monitoring.

Used, in great condition.