Abstract:
Cyclohexanone a cyclic ketone was oxidized to adipic acid using the oxidizing agents concentrated nitric acid. Then, the recrystallized product was characterize by using infrared spectroscopy and taking the melting points. The experiment yielded 0.199 grams of adipic acid and a very high percent yield of 106.40%. Upon examination of IR-spectrum, Adipic acid was identified by comparing it to the IR-spectrums provided in the lab book. Furthermore, the melting point of the experiment was obtained to be 151-154 ºC, which included the theoretical melting point of 153 ºC between the experimental melting point range.
Introduction:
Redox reactions are very important in organic chemistry and they involve transfer of electrons from one molecule to another. Oxidation occurs when a carbon atom becomes bonded to a more electronegative atom, causing the electron density on carbon atom to decrease (McMurray, 2012). That was the part that our experiment focused. The oxidation of Cyclohexanone for the
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One small drop of Cyclohexanone from a vial containing 150 mg of ketone. The tube was warmed on a sand bath until the brown oxides of nitrogen are emanating from the nitric acid. The solution was allowed to boil until it was almost clear. Then the tube was removed and the Cyclohexanone was added drop by drop within a time period of about one minute and it was allowed to boil again until it turned clear. The tube was then allowed to cool at room temperature and fine crystals were observed. The tube was cooled in an ice bath for about 3 minutes and the crystals were stirred with the tip of Pasteur pipette and the solvent was removed from the crystals. 0.2 mL of ice cold water was added to crystals and then the solvent was removed again using a Pasteur pipet. Once most of the solvent was removed, the crystals were spread on a filter paper and allowed to dry for next