Synthesis of Adipic Acid Essay example - 1667 Words

Experiment 8: Synthesis of Adipic Acid Performed November 8th amp; 10th By Jennifer Seitz Organic Chemistry 344 Section 803 Fall 2011 Objective: The purpose of this experiment was to synthesize adipic acid from cyclohexanol via an oxidation reaction that was catalyzed by sulfuric acid. Purity of the product was assessed by measuring the melting point. Physical Properties/Structures: Name | Formula | Molecular Weight (g/mol) | Boiling Point (0C) | Melting Point(0C) | Density(g/mL) | Hazards | Sodium Dichromate Dihydrate | Na2Cr2O7 . 2H2O | 297.98 | 400.0 | 357.0 | 2.35 | -Eye/skin irritant-Affects Respiratory System | Water | H2O | 18.02 | 100.0 | 0.0 | 1.00 | N/A | Sulfuric Acid (98%) | H2SO4 | 98.08 | 337.0 |†¦show more content†¦The oxidation reaction between cyclohexanol and sulfuric acid was successful in that it did in fact yield the adipic acid product but unsuccessful in the amount that was yielded, with a percent yield of only 35.0%. This yield may have been low due to both experimental and technical errors. One of the major causes of the low yield most likely had to do with the fact that the temperature went below 55.00C and above 65.00C during certain points of the reaction. When the reaction temperature goes above 65.00C, it causes the yield of adipic acid to be lower due to further oxidation. When the reaction temperature goes below 55. 00C, it causes the yield of adipic acid to be lower due to the fact that the amount of energy is not high enough to activate oxidation of the reaction. Some of the product also most likely was lost during both the crystallization and recrystallization process. Since adipic acid is somewhat water soluble, some of the product most likely moved with the water that was used to rinse it through the filter out of the Buchner funnel during vacuum filtration. This error could have been reduced had theShow MoreRelatedSynthesis And Recrystallization Of Adipic Acid1366 Words   |  6 PagesExperiment 1: Synthesis and Recrystallization of Adipic Acid Aim The current experiment sought to prepare 1,6-hexanedioic acid (adipic acid) by catalytic oxidation of cyclohexene in the presence of a phase-transfer catalyst (Aliquat 336), using sodium tungstate as a catalyst and hydrogen peroxide as an oxidant. Introduction The carbon-carbon double bond of alkenes represents a site that has a high electron intensity. This site is susceptible to oxidation. Depending on the conditions or reagents usedRead MoreOxidation of Cyclohexanone to Adipic Acid Essay986 Words   |  4 PagesApril Goodson CHEM 242L-002 February 20, 2013 Oxidation of Cyclohexanone to Adipic Acid Abstract The cyclic ketone cyclohexanone was oxidized to adipic acid using the oxidizing agent nitric acid. The experiment yielded 0.2667 grams of adipic acid, giving a percent yield of 113.97%. Although the product was allowed to dry for one week, residual moisture was still present in the sample and a melting point could not be obtained. This error in the experiment either resulted from adding too muchRead MoreThe Effect Of Glucose On The Formation Of Furanoid Diacetonide894 Words   |  4 Pagesmaterial for the commercial production of glucose via enzymatic hydrolysis (de Wit et al. 1993). Glucose is the primary component for the manufacture of alkyl polyglucosides, D-glucitol, gluconic acid, and high fructose corn syrup; in fact, D-glucose can undergo a fermentation process to produce L-ascorbic acid, from D-glucitol, as well as polyesters, polyurethanes, and alkyd and melamine resins. Moreover, D-glucose can form pyranoid, furnaoid, and acyclic tautomers (Lichtenthaler and Peters 2004 ).Read MoreAdipic Acid43555 Words   |  175 PagesINTRODUCTION 1. HISTORY AND GENERAL INFORMATION ON ADIPIC ACID 1. History on The Production Adipic acid is an important organic chemical raw material. In China, it is used as raw material in the production of Nylon 6/6 salt, polyurethane, plasticizers, high-grade lubricants and food additives. With the rapid growth of development, the application of adipic acid keeps expanding. The production of adipic acid is controlled in the hands of multinationals. An American chemicalRead MoreBenzene : Chemical Toxic Chemical With The Chemical Formula Of C6 H61245 Words   |  5 PagesFahrenheit. It has a sweet petrol like odour and is highly flammable. The hydrocarbon is derived from benzoic acid and is therefore named benzene. Michael Faraday an English scientist, famous for his work with electronic fields, first isolated and identified benzene in 1825 from the oily residue derived from the production of illuminating gas. In 1834 Eilhardt Mitscherlich heated benzoic acid with lime and produced benzene. In 1845 A von Hofmann isolated benzene from coal tar. Benzene dissolves on lyRead MorePreparation of Cyclohexanol2173 Words   |  9 Pagesthe production of caprolactam and adipic acid that is a raw material of nylon 6 (Zhang, et al, 2002). Cyclohexanol can be produce through several methods, which include the oxidation of cyclohexane, the hydration of cyclohexene, or the hydrogenation of phenol (Zhang, et al, 2002). Problem with oxidation of cyclohexene is poor selectivity, extremely large recycles and explosion hazards. (Suresh, Sridhar, Potter, 1988). The purpose of this experiment was to synthesis cyclohexanol by hydration of cyclohexene