Chem 333L Experiment 3 Post Lab Results Observations The starting ternary mixture that was to be separated by extraction appeared to be a light brown powder. The only noticeable odor was the pungent smell of the ether solvent used. When the contents of the starting mixture were separated into test tubes, the contents of the test tube A appeared as clear liquid which produced a white solid. Test tube B contained a green liquid which appeared as a orange solid after HCl was added and the contents were dried. Test tube D contained a beige liquid which produced a orange colored powder. The weight of each empty, dry test tube were as follows: A=18.862g , B=18.792g, C=16.862g, D=18.595. Gathered Data All data gathered at the end of the experiment is shown below: Compound Melting Point C Percent Composition % Mass Composition g Benzoic Acid 100 33.7 0.48 Naphthalene 76 29.75 0.04 2-Naphthol 85 36.54 0.05 *Results obtained from Emma Spencer and Katie Macmillan Although the experiment started with a 1g sample of ternary mixture, the products of the extraction only formed a mass of 0.1412g. This resulted in a 14.1% recovery. Conclusion Extraction is a method by which compounds in a mixture can be separated into pure samples. Acid/Base extraction was primarily used to cause selective reactions within the ternary mixture and allow only a single compound at a time to separate. With a separatory funnel, the separated compound can be collected and isolated in test tube. From this stage, the solvent can be removed by suction filtration or evaporation and a dry, pure sample will be obtained. By this method it was possible to separate benzoic acid, naphthalene, and 2-naphthol from a ternary mixture. Analysis of IRBenzoic Acid Aromatic Ring C=C 1600 cm-1 C-H 3100 cm-12-Naphthol Aromatic Ring C=C 1600 cm-1 C-H 3100 cm-1Naphthalene Aromatic ring C=C 1600 cm-1 C-H 3100