Lab Report Eugenol

Introduction Eugenol is a natur all in ally occurring chemical that has medical applications such as its use as a natural dental anesthetic. It can be extracted from cloves by using the method of locomote distillation. The extracted aggregate will then be separated from the pee using methyl chloride, which will then be evaporated using a rotary evaporator leaving only the essential oil, Eugenol. IR spectrometry will be used to determine the structure of the extracted compound. Results and Discussion Four samples of Eugenol were combined to be analyzed for the net harvest-tide.A refuse percent recovery, as indicated by Table 1 could be due to the fact that much of the tilt of the cloves was not actually eugenol. Cloves Used Eugenol Recovered Percent Recovery 10 g 7. 304 (7. 304/40) x degree centigrade% = 18. 26% Table 1 Calculations of the percent recovery of Eugenol. Figure 1 The structure of Eugenol. The IR spectroscopy run on the sample gave results as shown in Table 2. The OH exserting accounts for the hydroxyl group on the aromatic ring as shown in Figure 1.The C-H peaks are from the mexthoxy group on the aromatic ring. The C=C-H are a result of the hydrogens bonded to the carbons of the aromatic ring. The peak from the C=O stretch is not from the compound, but may be a result of product contamination. Absorbance Shape Intensity Group-motion 3512. 21 Broad Weak H2O or OH stretch 3072. 52 sharply Medium C=C-H stretch 2948. 85 Broad Strong C-H stretch 2845. 80 Sharp Medium C-H stretch 1767. 18 Sharp Weak C=O stretch Table 2 IR Table of sample taken.Experimental origin of Eugenol began by taking 10 grams of cloves and placing them in a 250mL round bottom flask. This flask was then inclined to a steam distillation apparatus and heated to the boiling point of about 100C. The steam was con toilsomed and accumulate in a graduated cylinder. This collected material consisted of water and the eugenol contained in the cloves. 100mL of the product was collected and placed into a separatory funnel. The eugenol now had to be removed from the water by adding 15mL of CH2Cl2 and shaken.The layers were allowed to separate. The CH2Cl2 layer was more dense than water and sank to the bottom of the funnel. The bottom layer was collected and another 15mL of dichloromethane was added to the funnel to repeat the process. This was retell yet again to obtain a final amount of 45mL of dichloromethane with eugenol dissolved in it. The 45mL of product was moved to a 100mL Erlenmyer flask. The next step was to dry the mixture with 0. 5g of CaSO4 to remove any excess water in the mixture.The flask was swirled to allow for the CaSO4 to collect any water. The product was then allowed to rest and was put by a filter to remove the CaSO4. Once filtered, four different samples were collected in a whizz 500mL round bottom flask. This product was then placed onto a rotary evaporator to evaporate away all of the dichloromethane and leave behind only eugen ol. This was achieved because the boiling point of the dichloromethane was much lower than that of eugenol. The final product was then analyzed by IR spectroscopy.