So, we use isopropyl alcohol as a solvent.Īs mentioned in the working of the soxhlet extractor, we set up the assembly. We will see how the extraction process works for a better understanding of Soxhlet extraction.īlack pepper contains piperine which is soluble in isopropyl alcohol. We use the soxhlet extractor for a variety of applications, one of which is piperine extraction from black pepper. Now, we can separate them by the further procedure.Now we are left with the mixture of solvent and the components from the sample which are soluble in the solvent. When we think that we have exhausted the sample sufficiently, we stop the cycles.So, each time we get 100% pure solvent vapors. And despite that, when the solvent vaporizes, the components from the sample do not get vaporized. One thing to mention is, we don’t change the solvent for every cycle. As I mentioned earlier, we can perform as many cycles as we want.Since the Siphon directly connects RBF, the overflowed liquid falls back to RBF.A point reaches where the siphon starts overflowing under the influence of gravity. The solvent mixture starts filling thimble and siphon. Siphon connects the thimble to RBF as we saw earlier.So, when the condensed vapors fall into the thimble, the powder gets wet with the solvent and the components which are soluble in the solvent gets along with it.The powder has to be covered from the bottom with a cotton ball to avoid powder directly falling into the thimble. We put our sample powder inside the thimble.The condenser condenses the vapors of solvent and those condensed vapors fall down to thimble.The vapors from the RBF travel from RBF to the condenser via the distillation tube.The RBF which contains our solvent starts boiling.First we turn on the heat and the metal plate gets heated. It’s okay if other components are soluble too because we can separate them later. Then only we would be able to separate it from other components. Referring to this diagram, let’s see how the soxhlet extractor works.įirst, we need to understand that, the desired component from the sample powder must be soluble in the solvent at high temperatures.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |