April 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 much
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Preparation In a dry round bottom flask‚ 1.5mL of cyclohexanone was added with 5mL of methanol. The solution was cooled in an ice bath for 3 minutes after which 0.2g of sodium borohydride was measured and added to the solution. Upon mixing‚ a gas was formed (bubbles). The round bottom flask was removed from the ice bath and placed at room temperature. After 10 minutes at room temperature‚ 5.0mL of 3M NaOH and 2.0mL of distilled water was added to the solution. Isolation and Characterization The
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across the carbon-oxygen double bond and the elimination reaction took place when the water molecule left (Clark‚ 2015). To demonstrate these mechanisms‚ the reaction between a semicarbazide and a mixture of cyclohexanone and 2-furaldehyde was observed. Both 2-furaldehyde and cyclohexanone contain a carbonyl group. This allows semicarbazides to react with the carbonyl group to form a semicarbazone. That is‚ the double bonded oxygen on the carbonyl group and the two hydrogen of NH2 react to form
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Mario Troncoso 20025019 Dehydrating Cyclohexanol Structure/MSDS: Anhydrous calcium chloride—irritant and hygroscopic (calcium chloride) cyclohexanol—irritant and hygroscopic (cyclohexanol) cyclohexene—flammable and irritant (cyclohexene) Sulfuric acid—toxic and oxidizer (Sulfuric acid) phosphoric acid—corrosive (phosphoric acid) Results/Data: End product weighed 0.109g of cyclohexane and tested positive with bromine test Discussion: In order to perform
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The Synthesis of Alkenes: The Dehydration of Cyclohexanol Adam Ohnmacht CHEM 0330 Scott Caplan 10/30/12 Abstract: In Organic Chemistry‚ many different methods are used to synthesize organic compounds from various components. In this lab‚ cyclohexanol was dehydrated to cyclohexene through an elimination reaction. In order to separate the cyclohexene product from the cyclohexanol starting component‚ previously learned lab techniques such as extractions and simple distillation were used.
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Title: Preparation of Cyclohexene from Cyclohexanol Aim: To prepare an alkene‚ cyclohexene‚ by the dehydration of an alcohol‚ cyclohexanol‚ and better understand the processes that take place during this reaction. Introduction: One of the common ways of preparing an alkene is through the dehydration of an alcohol. In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. A bromine test can be later done to ensure that the end product is
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indicate the movement of electrons. O O H3 C H+ HO OH CH3 O H3 C O CH3 O . (b) Briefly explain the fact that‚ although hemiacetal formation between methanol and cyclohexanone is thermodynamically disfavored‚ addition of methanol to cyclopropane goes essentially to completion. O CH3OH HO OCH3 O ‚ cyclopropanone cyclohexanone CHEM 238 page 2 Name . 2. (35) A β‚ γ-unsaturated carbonyl compound rearranges to a more stable conjugated α‚β-unsaturated compound in the presence
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Objectives * Be able to prepare cyclohexene from the dehydration of cyclohexanol * Understand the mechanisms of the dehydration reaction (acid-catalyzed dehydration). * Know how to use the necessary equipment for this reaction‚ such as the fractioning column. * Obtain positive results in unsaturation tests for the presence of carbon-carbon double bond (cyclohexene). II. Background Cyclohexanol‚ the reagent of this experiment‚ is used in the production of nylon‚ paints
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Cyclohexene Synthesis by Dehydration Reaction of Cyclohexanol Gjulia Vokrri 02-15-2013 Abstract Alkenes can be produced by heating and dehydrating an alcohol in the presence of a strong acid. The purpose of this experiment was to synthesize cyclohexene by dehydration of cyclohexanol and to detect the presence of a double bond in the alkene. The dehydration reaction using distillation was
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sulfate than cyclohexanol‚ excess anhydrous sodium sulfate may lead to the absorption of cyclohexane and thus loss of product. Anhydrous sodium sulfate absorbs water due to its polarity and therefore may also absorb cyclohexanol because of its polar O-H bond. If too much anhydrous sodium sulfate was added to the solution‚ part of the product would be absorbed too and thus a yield of less than 100% would be produced. 2. Lithium aluminum hydride would also reduce cyclohexanone to cyclohexanol. List three
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