Question

Name: Dale: Recitation Assignment: CO, extraction ol Eugenol Due: October 27" al 5:00 pm 1. Which one cl the lollowing two compounds would you expect to have a higher solubility in liquid CO2. Explain your reasoning in a l'ew sentences: Ma Y Cho CH3 Caffeine Capsaicin 2. Explain wliy percent ICCovery is utilized in the CO, extraction of Eugenol as opposed to a theoretical yield. Limit youlself to 1-3 sentences. 3. List 3 signals that should be observed in the IR spectrum of Eugenol (whose structure is shown to the right). Hico HO 4. In your own words, explain the purpose ol sealing the 15 ml. centrifuge lube and submerging in into hot water bath.

2. Explain why percent recovery is utilized in the CO2 extraction of Eugenol as opposed to a theoretical yield. Limit yourself to 1-3 sentences.

Answer 1

ANSWER - Question 2:

When we extract eugenol using CO₂ extraction, in theory we could be able to isolate the 100% of the eugenol. However, in practice, it is not always possible. Then, to determine the success of the recovery with the CO₂ extraction, it is better used the percent recovery

$\%\, recovery=\frac{actual\, recovery}{theoretical\, recovery}\times 100\, \%$