The synthesis of aspirin chemistry standard level lab report data collection and processing and conclusion and evaluation date: december 8th, 2011 purpose: the purpose of this lab was to synthesize aspirin, determine the theoretical yield, compare the percent yield to the theoretical yield and test. In the lab phosphoric acid salicylic acid was used as a catalyst or the substance which makes the reaction rate faster upon the addition of acetic anhydride and 85% of phosphoric acid in the salicylic acid results and discussion aspirin can be made by using a process called esterification aside from being a catalyst. Rasan cherala synthesis of aspirin lab purpose: the purpose of this experiment is to create aspirin by reacting salicylic acid with acetic anhydride this prod moles product obtained = 126 g x mol/180 g = rasan cherala conclusion: using the assumption that the yield was 100% aspirin is incorrect. Safety, check-in sept 4-8 exp 4, synthesis of aspirin, pp 20-25 technique: recrystallization and melting point determination sept 11-15 handout: separating the components of “panacetin” technique: extraction and evaporation [aspirin lab report due] sept 18-22 handout, “panacetin” continued. In conclusion, a greener aspirin synthesis using a microwave was successful in research, and as undergraduate organic chemistry lab experiment the synthesis was produced a minimum aspirin yield of 70% as a lab experiment all data was supported by ir's , h-nmr's, and melting points the procedure and method will. In the laboratory 628 journal of chemical education • vol 83 no 4 april 2006 • wwwjcedivchedorg the synthesis of aspirin has been a popular experiment in organic chemistry teaching laboratories and even pool their results to reach a conclusion regarding the cata- lysts' effect to a clean and dry 50-ml beaker. Synthesis of aspirin: in the lab we have made aspirin from acetic anhydride and salicylic acid using phosphorous acid as a catalyst afterwards we added water to quench the remaining acetic anhydride and to make the aspirin form crystals then we added saturated sodium bicarbonate solution, and then we filtrated.
Table of contents introduction spectrophotometric methods method i reagents standard preparation sample preparation method 2 reagents standard preparation sample preparation sample measurement results method 1 method 2 conclusions about cole-parmer. 4) synthesis : conclusions are drawn, single facts are generalized, diagrams are produced for our laboratory experience the aim is to prepare aspirin beginning with salicylic acid and acetic anhydride never forget to focus what the molecules are doing while mixing materials together and carrying out the reaction. Conclusion after we conducted our experiment and synthesized aspirin, we tested out the purity of it and our results showed that 1) there was salicylic acid contamination in our aspirin, tested positive due to the purple coloration in the fecl3 test 2) sulfuric acid was the catalyst in this reaction. An experiment is described that is suitable for the early portion of the laboratory in a general chemistry course and integrates organic examples it is the two-step synthesis of aspirin starting from oil of wintergreen the mechanism for this synthesis provides examples of three major classes of chemical reactions: hydrolysis,.
The documented rf for pure aspirin is 0 56 however this experiment shows pure aspirin to be 0 95, therefore for the purpose of comparison the documented value shall be used this could be due to contamination, incorrect processes in the procedure, the amount of solution used or the temperature of the solution,. Chem 1310 section b03 rotation synthesis and analysis of acetylsalicylic acid chem 1310 section b03 rotation synthesis and analysis of acetylsalicylic acid.
Laboratory of organic chemistry natural products and pharmaceuticals anna k przybył joanna kurek edited by jan milecki uam, poznań 2013 benzocaine (2 steps synthesis) aspirin, dissolve the product in the mixture of diethyl ether and hexane (10 ml: 10 ml) weigh the product. Can you make aspirin in the laboratory aspirin as part of your a level course you will be expected to prepare an organic solid, so even if you're not specifically making aspirin, a lot of the techniques and safety considerations are similar the first step of the synthesis involves mixing salicylic acid with ethanoic anhydride. The synthesis of aspirin chemistry standard level lab report data collection and processing and conclusion and evaluation date: december 8th, 2011 purpose: the purpose of this lab was to synthesize aspirin, determine the theoretical yield, compare the percent yield to the theoretical yield and test the purity of aspirin. Contents [hide] 1 preparation of aspirin 11 chemicals and apparatus 12 precautions 13 procedure 14 treatment of the product 15 conclusions and comments 2 references.
A student researched lab analysis about the synthesis and characterization of aspirin by measuring the melting point as well as taking a uv spectroscopy. In the general, organic and biological chemistry (gob) lab kit: synthesis of aspirin, investigate the structure, synthesis and properties of aspirin, one of the oldest yet most common drugs. It is a white, crystalline, weakly acidic substance which melts at 135°c to prepare aspirin, salicylic acid is reacted with an excess of acetic anhydride a small amount of a strong acid is used as a catalyst which speeds up the reaction in this experiment, phosphoric acid will be used as the catalyst the excess acetic acid will. Under the general direction of the director of examples of lab reports conclusions forensic services normally, the individual that issued the laboratory report would serve as the discussion: in the synthesis of aspirin, salicylic acid behaves as an alcohol and reacts with acetic anhydride (with agar and broth cultures of.
Free essay: the synthesis of aspirin chemistry standard level lab report data collection and processing and conclusion and evaluation date: december 8th. Experiment, phosphoric acid will be used as the catalyst the excess acetic acid will be quenched with the addition of water the aspirin product is not very soluble in water so the aspirin product will precipitate when water is added the synthesis reaction of aspirin is shown below: since acetic acid is very soluble in water,. Aspirin synthesis and characterization author: layla nicks lab partners: ayman sami, ronnie phelps, instructor: peilu liu chem 151, section 4h date work performed: march 27, 2013 & april 3, 2013 date report submitted: april 10, 2013 abstract: aspirin is formed through the combination of salicylic acid and acetic.
In this laboratory activity you will synthesize aspirin, a derivative of salicylic acid salicylic acid and its in this laboratory synthesis, you will heat a mixture of salicylic acid and acetic anhydride with a trace of sulfuric acid as catalyst because aspirin is what can students conclude if their aspirin preparation turns purple. Aspirin synthesis and analysis revised: 12/13/14 cooled to freeze) in this experiment, you will measure the melting point of your synthesized asa product, salicylic acid, a crushed aspirin tablet, and pure asa from a manufacturer • samples with unreacted salicylic acid complex with fe3+ to create a. Lewis structures, limiting reagent, synthesis, crystalization, percent yield, melting point introduction & objectives: in this experiment, you will prepare aspirin from salicylic acid and acetic anhydride using sulfuric acid as a catalyst you will determine the percent yield of aspirin and you will confirm it's identity with ft-ir. It has been present for over one hundred years and is one of the most widely used medications in the world conclusion: the main objective of the synthesis of aspirin lab was so produce aspirin (acetylsalicylic acid) through the reaction of salicylic acid and acetic anhydride the methods used included recrystallization and.
Studies were conducted regarding the production of acetylsalicylic acid (more commonly known as aspirin) and a hypothetical installation was designed acetylsalicylic acid as neither the reactants nor products are toxic or carcinogenic the reaction temperature and pressure can be easily reached in lab. The preparation of aspirin: page 2 of 2 p h o toco p y p chemical tests for purity the addition of a chemical reagent to identify substances is a common procedure in chemical analysis often the reagent added forms a coloured compound with the substance under investigation in this experiment iron(iii) ions react.