.

Monday, September 16, 2013

Recrystallization

Purpose: The purpose of this experiment was to isolate trimyristin from nutmeg tree by performing a simple solid- eloquent extraction, to purify the technical-grade production from the nutmeg by recrystallization and to assess the purity of the resulting cloth by development melting points. Procedures: We began by taking maven walloping nutmeg in its solid form and grinded it up using a mortar and pestle for five minutes. The nutmeg in its solid form was brown in gloss and smelled mellisonant like cinnomin. Before crushing the nutmeg weighed 3.419 grams. We weighed the resulting pulverisation to be 3.228 grams. We then transferred the powder nutmeg into a 50 ml round bottom flask and added 15 ml of dichloromethane. We pose our flask in to a exemplification inflame wane apparatus and gently refluxed the diversity. We waited until we saw the first shake off of fluent in the apparatus and heated for 15 minutes. subsequently the mixture was heated, there was sol id on the bottom and liquid on the top of the flask. The set up was let calm to way of life temperature. Next, we decanted the mixture in to a discase 100 ml beaker. We rinsed the remaining solid with 10 ml of DCM and swirled the mixture. The mixture was decanted once more in to the same beaker. Next, we added change state chips to the liquid and evaporated the solvent over the impetuous plates under the hood.
Ordercustompaper.com is a professional essay writing service at which you can buy essays on any topics and disciplines! All custom essays are written by professional writers!
by and by the solvent was evaporated and the flask was cooled, we employ a spatula to remove a small amount of the bleak product and took its melting point. We dictated the melting point tend of the strain t o be 43.0-46.0 degrees Celcius.The uncut pr! oduct was yellow sullen when it was warm and orange in color when cooled and sticky. We then recrystallized our exemplar using 5 ml of warm acetone that was heated on a hot plate under a hood. The warm acetone was poured in to the beaker with our crude sample and swirled. The beaker with our sample was then placed in to an ice bath to cool and recrystallize. As the sample cooled, crystals began to exhibition in our sample. A standard vacuum...If you want to get a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.