The ethanol was a clear solution with an odour similar to strong alcohol. The pure aspirin shows only one spot on the paper, this is because it consists of only one compound, that being 2-acetoxybenzoic acid aspirin. Prepared a water bath by half-filling a mL beaker with water and heating it on a hot plate to until it was near boiling.
Upon heating the solution and adding water, puffs of smoke were produced. The range of melting points for the crude aspirin and product of willow bark in comparison to the pure aspirin is obvious and can show the level and amount of impurity in both compounds.
If necessary remove the heater and carefully shake the mixture ensuring you do not get burnt or hurt. The results of the melting point test were that our purified aspirin product started melting at 86 degrees Celsius and at degrees Celsius the entire purified aspirin product had completely melted.
Then it will be discussed as to why the yield produced are the same or different and also why the melting point are the same or different. Allow the sample to vacuum dry for 5 minutes.
Then carefully filter the product using the filter paper and filtering equipment such as the vacuumed container. The experiment has been carried out on a small laboratory scale. Heat the 25 mL Erlenmeyer flask in a water bath not to exceed 50 degrees Celsius until all of the product has dissolved.
Load the capillary tube into the melting point apparatus and begin heating. Analysing the results obtained it is clear that the experiment was a success.
Prepared another ice water mixture in the mL beaker and placed the mL beaker in the ice water. The third factor that caused a low percent yield of our purified product was that when we vacuum filtered our purified product, some of our purified product fell through the filter and into the side arm flask.
Temperature will be one of the hardest aspects to control; the quality of the experiment heavily lies on this.
In a mL Erlenmeyer flask add 5 mL of acetic anhydride, 1. Also leave the remaining 20 mL of DI water in the mL beaker in its ice bath. Due to the time factor it was unable to make this judgment. Both would serve the purpose of higher energy and produce more product as crystals. The ethanol was a clear solution with an odour similar to strong alcohol.
At the same time place the mL beaker containing 70 mL DI water in the second ice bath set up previously for 20 minutes. Cold water would lower the kinetic energy of the molecules, slow down their vibrational movement, and allow them to crystallize into a solid.
Record the temperature range that the sample melts within. What is the actual yield produced in the experiment compared to the theoretical yield? The percent yield of crude aspirin product was Shape of aspirin depending on the size and dosage in industry? As early as BC ancient cultures such as Greek, Roman, Egyptian, and Chinese found that extracts from plants such as willow bark, meadowsweet, and myrtle possessed the ability to alleviate fever, pain, and inflammation.
Aspirin became commercially available in and today it is estimated that over a trillion aspirin tablets have been consumed by those in need of its curative effects.
If the geometry of the molecule fits that of the crystal, it will be more likely to remain on the crystal than it is to go back into the solution.
The solid aspirin product was trapped by the filter and the liquid was drawn through the funnel into the flask below it by a vacuum. The sulfuric acid was a clear solution with a strong odour when heated.
Hofmann worked for Bayer, which then named acetylsalicylic acid compound aspirin. As early as BC ancient cultures such as Greek, Roman, Egyptian, and Chinese found that extracts from plants such as willow bark, meadowsweet, and myrtle possessed the ability to alleviate fever, pain, and inflammation.
Starting Melting point temperature of aspirin: Taking this into account, the actual mass of the crude aspirin product is reduced to 2.
The crystal product will be stuck at the top of the capillary tube. Another way the purity of the sample is tested is through a melting point test on the purified aspirin product. Heat the mixture for 5 minutes. Size of the apparatus?
Wait for the mixture to boil and then let it boil for 5 minutes. If crystallization does not occur use a glass stirring rod and with strong force scratch the bottom of the Erlenmeyer flask.Synthesis of Aspirin Essay Sypnopsis In this experiment, acetylsalicylic acid was synthesized from the acidification of salicylic acid and acetic anhydride.
The objective was to convert a specific amount of salicylic acid into the same amount of aspirin that was high in purity. Synopsis. The objective of this experiment is to enable us to conduct the synthesis of aspirin, reinforce the skills of recrystallisation and reinforce the.
Synthesis of Aspirin Lab Report Words | 12 Pages. Abstract: The goal of this experiment was to synthesize aspirin. In this experiment aspirin, also known as acetylsalicylic acid, was synthesized from salicylic acid and acetic anhydride. Synthesis of Acetyl Salicylic Acid (Aspirin) Essay.
Date Experiment conducted: 05/02/ Date Report Written: 08/02/ Synthesis of Acetyl salicylic acid (Aspirin) Abstract Introduction: The following report contains information on how to produce aspirin - Synthesis of Acetyl Salicylic Acid.
Essay on Synthesis of Aspirin Words | 22 Pages. The Synthesis of Aspirin Chemistry Standard Level Lab Report Data Collection and Processing and Conclusion and Evaluation Date: December 8th, Purpose: The purpose of this lab was to synthesize aspirin, determine the theoretical yield, compare the percent yield to the theoretical.
Synthesis of Aspirin Salicylic acid derivatives, or salicin, are found in the bark of the willow tree. In the 5th century B.C., Hippocrates ground the bark into a powder, and later, the Natives Americans chewed on the bark to alleviate fever and pain1.Download