Camphene Synthesis

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For the first synthesis reaction, camphene was converted to isobornyl acetate. In the fume hood, a sample of 1.36 g of camphene was added to a 25-mL round-bottomed flask along with a stir bar. To dissolve the camphene, 3.0 mL of glacial acetic acid was added into the flask. The flask was fastened onto a ring stand and immersed in a water bath that was on top of a stir plate. A thermometer wire was placed in the water bath to monitor the temperature throughout the experiment. After the camphene dissolved, 0.50 mL of 8 M sulfuric acid (H2SO4) was added. To prepare for heating, a cork was placed upside down to cap the mixture and prevent evaporation. The mixture was then heated until the water bath reached 85 °C. The temperature was maintained …show more content…
A stir bar and 4.67 mL of 2.5 M potassium hydroxide (KOH) was added into the 25-mL round-bottomed flask containing the isobornyl acetate. This flask was then attached to a water-cooled condenser and rested on top of a heating sand bath on a hotplate. The mixture remained in reflux for one hour. Then, a strip of pH indicator was used to gauge the acidity levels in the reaction. Since the pH strip became dark teal, this meant the pH was greater than 12 and an adequate amount of KOH had reacted. The reaction mixture was then placed in 15.618 g of ice in a 50-mL Erlenmeyer flask and solidified in the ice bath for twelve minutes. A vacuum filtration apparatus was constructed using a 150-mL filter flask and a Büchner funnel. The newly formed solid was poured into the funnel and rinsed with cold deionized water. Filtration began and lasted for fifteen minutes. The melting point and mass of the collected sample were measured, and a small amount of this solid sample was placed onto a Thermo Nicolet is10 FT-IR Spectrometer to obtain an IR spectrum. The remaining sample of isoborneol was placed into a clean 50-mL Erlenmeyer …show more content…
A stir bar was added into the flask containing isoborneol, and the flask was attached to a ring stand to rest on top of a magnetic stirrer device. In consistent drops, 0.63 mL of glacial acetic was added and the reaction had a pH of 2, which was measured with pH indicator paper. Then, 0.50 mL of 10% w/v sodium hypochlorite (NaOCl) solution was added, and the reagents were reacted for three minutes. Shortly after, 5.13 mL of 10% w/v NaOCl was added incrementally with a Pasteur pipet for about ten minutes. A thermocouple was periodically placed on the outside of the flask to make sure that the mixture did not reach past 50 °C. Once the flask was left to mix for fifteen minutes, a strip of starch-iodide paper was inserted into the mixture to determine whether chlorine (Cl2) was present. The mixture was then left to stir for another fifteen minutes. The flask was then chilled in an ice bath to prepare for filtration. A vacuum filtration apparatus was set up using a 150-mL filter flask and a Büchner funnel. The mixture was then poured into the funnel, rinsed with cold deionized water, and was left to filter for ten minutes. The melting point and mass of the collected solid were

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