The rotovap vacuum pump enhances distillation efficiency by lowering the pressure inside the system, which lowers the boiling point of the liquid being distilled. This allows for the separation of components at lower temperatures, reducing energy consumption and preserving delicate compounds.
The recommended vacuum pump for a rotovap is a diaphragm pump. It can be purchased from scientific equipment suppliers or online retailers specializing in laboratory equipment.
ephedra is a shrub nativ to china that yealds L&DL-ephedrine how is it sxtracted? Powderize the ephedra, make it basic with NaOH and then steam distill it over. Neutralize the distillate with HCl acid, then use a rotovap (or hair dryer) to evaporate the water. Also, I'm pretty sure that Ephedra only yields the active isomers, that's l-ephedrine and D-pseudo. Plants of the genus "Sida" (S cordifolia, S rhombifolia etc) also yield Ephedrines. Do an A/B on Sida cordifolia extract ;^)
The recommended vacuum pump for a rotovap is a diaphragm pump. It can be purchased from scientific equipment suppliers or online retailers specializing in laboratory equipment.
Steam distillation yield mint essential oil. From the essential oil you have two options: Extraction, reduction, and purification. Or you can take the essential oil and perform a re-crystallization. The first would be to take the distillant, dry it, and isolate your essential oil. Then perform an ethanol extraction on it several times to get most of the methanol out. Then NaOH washes to remove random impurities and alkaloids, then you want to dry it again (Na2SO4 would be ideal). Then you rotovap off your dried ethanol solvent. You should have crude methanol. Take this and perform a cold finger sublimation. Scrape your methanol crystals off the cold finger and bam, pure Methanol. Or you can perform a re crystallization, but I'm not exactly sure what solvent you would use. so that would take more research, but I know it can be done.
ephedra is a shrub nativ to china that yealds L&DL-ephedrine how is it sxtracted? Powderize the ephedra, make it basic with NaOH and then steam distill it over. Neutralize the distillate with HCl acid, then use a rotovap (or hair dryer) to evaporate the water. Also, I'm pretty sure that Ephedra only yields the active isomers, that's l-ephedrine and D-pseudo. Plants of the genus "Sida" (S cordifolia, S rhombifolia etc) also yield Ephedrines. Do an A/B on Sida cordifolia extract ;^)