Dehydration Of Cyclohexanol To Cyclohexene. The role of the phosphoric acid is to protonate the alcohol ('step a' below), making it a viable leaving group. This is a very simple case.
It is a colorless liquid with a sweet, pungent odor. The percent recovery of the product was 72.7382% which is very good for an alkene product. The acid used in this experiment is 85% phosphoric acid and the alcohol is cyclohexanol. The simple distillation apparatus was sufficient to use to get desired results. Ohh 2so 4 heat + h 2o(1) cyclohexanol cyclohexene the mechanism of this reaction is shown in equation 2. Note that the phosphoric acid is a catalyst and is not involved in the yield calculation. The phosphoric acid is a catalyst and as such increases the rate of reaction but does not affect the overall stoichiometry. Korry barnes korry has a ph.d. In the laboratory, it can be prepared by dehydration of cyclohexanol. The ethene is collected over water.
In organic chemistry and teaches college chemistry courses. In the presence of a strong acid, an alcohol can be dehydrated to form an alkene. Ohh 2so 4 heat + h 2o(1) cyclohexanol cyclohexene the mechanism of this reaction is shown in equation 2. It is a colorless liquid with a sweet, pungent odor. Web the dehydration of cyclohexanol to give cyclohexene this is a preparation commonly used at this level to illustrate the formation and purification of a liquid product. Cyclohexene is a malodorous liquid. This is not deserted not quite the perfections that we will offer. Take the rb flask and add 10 ml of cyclohexanol First write out the balanced equation. The percent recovery of the product was 72.7382% which is very good for an alkene product. The goal of this week s lab is to synthesize cyclohexene from cyclohexanol using the method of dehydration.
