[Audio] Good morning everyone, I'm pleased to present you this project by Liu Lu and Zhang Na about the preparation of ethyl acetate through organic chemistry experiments. Let's find out how it works!.
O O O Objectives Principle Equipments and Reagent Procedure Questions and thoughts.
[Audio] This presentation's slide number 3 will go over the objectives of this experiment. Esterification reactions are a way to make esters from organic acids and alcohols. The experiment's main goals are to understand and be able to use the fundamental principles and preparation methods of esterification reactions. It also aims to understand and use the experimental techniques of reflux and distillation. Let's take a closer look!.
[Audio] Our goal in this experiment is to prepare ethyl acetate through an organic chemistry experiment. Ethyl acetate is a volatile compound and is slightly soluble in water while being easily soluble in chloroform, ethanol, acetone and ether. The reaction we will be using is esterification, through which acetic acid and ethanol react in the presence of a catalyst to create ethyl acetate. Careful control over temperature, pressure and other variables will ensure that our reaction produces the desired results..
[Audio] When preparing ethyl acetate, it is important to be aware of potential side reactions that can cause unwanted results. Common side reactions include esterification, hydrolysis and condensation reactions. To minimize the chances of side products forming, the reaction conditions should be carefully considered, as well as the reaction mechanism. Understanding side reactions can help the experimenter be more successful in the preparation of ethyl acetate..
[Audio] We present the equipments and reagents needed for the organic chemistry experiment. A platform scale and an atmospheric distillation unit will be used for the laboratory work. To ensure accuracy and efficiency, it is essential to make sure the tools are properly calibrated and the right reagents are used..
[Audio] To start the experiment, 20ml of absolute alcohol, 12ml of acetic acid, and 1ml of concentrated sulfuric acid have to be added to a round-bottomed flask. The sulfuric acid should be added drop by drop whilst the flask is being shook as if all of it is added at once the liquid could become yellowed as a result of local carbonization. When these ingredients have been added to the flask, secure a water-cooled reflux condenser, making sure the water inlet is on the bottom and water outlet is at the top, then heat under reflux for 40 minutes, continually shaking the flask. Doing this will help to successfully prepare the ethyl acetate..
4 Procedure. 8. 2. Distillation. Pour the reaction solution in first step into a round-bottomed flask.
[Audio] When preparing Ethyl Acetate, it is essential to take into account the restrictions imposed by the reaction. To guarantee achievement, it is essential to be aware of the amount of concentrated sulfuric acid utilized, and also the temperature of the reaction. Furthermore, be mindful not to add too much desiccant, as this can reduce yield. By following these directions, it will enable a successful preparation of Ethyl Acetate..
[Audio] Share some questions related to the preparation of ethyl acetate. We have implemented certain measures to increase the yield of the esterification reaction. Concentrated sulfuric acid not only catalyzes but also absorbs the water in the reaction to increase the yield. But a more concentrated sulfuric acid is not always better. Why?.
[Audio] Concluding, our goal was to inform you about the preparation of Ethyl Acetate Organic Chemistry Experiment and what is expected of you in terms of the report. This report should include objectives, principle, equipments and the procedure. You must also answer the questions in the report. If you are an online student, you must send your report to the email address provided before May 9th..