chemsample-discussion3

=Group 6 Esterfication=

What do you think is the advantage of esterification using microwave compared to refluxing with nonpolar organic solvent?

//Student A// 'Refluxing' with a nonpolar organic solvent is time consuming, and a questionable procedure when trying to obtain a maximally pure product from a small initial sample. Using a microwave method vastly decreases reaction time, leading the reaction to completion in a manner of a few minutes (as opposed to a few hours). Depending on the method and accuracy of sample preparation, the high heat should also lead the reaction to its maximal efficiency; thus, a maximal product (and prob maximal purity). In this case, however, I think that heat is the key ~ heat should lead the reaction to 'completion,' whereas a nonpolar 'Reflux' technique should not surpass a state of equilibrium.

Student B The microwave works best for this experiment because of time related issues, if you decided to reflux; it will take you several hours to distill it. Also, you have more control over your reaction. When I say control I mean in terms of the temperature and keeping it constant, which will overall give you a higher yield.

Student C For our experiment we use the microwave to accelerate the reaction that would normally with conventional heating take place and reach equilibrium after a few hours of reflux. There is also a question of accuracy and control. With a microwave you can control the temperature, monitor pressure, all with timed accuracy. You also obtain a better yield using a microwave as opposed to a solvent.

Student D The microwave is a lot faster than refluxing with a nonpolar organic solvent. This allows us to get more done in the lab and we will have more accurate results by doing this.

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