It was determined that unknown #6 is 2-hexanone. The reaction with 2,4-Dinitrophenylhydrazine was a positive test confirming that the compound was either a ketone or and aldehyde and not an alcohol. The Schiff’s test showed a light pink color meaning it was a negative test determining that the compound was a ketone and not an aldehyde. The iodoform test showed that the compound was water soluble and formed a yellow precipitate confirming the compound to be a methyl ketone. The melting point of the compound was found to be at 111-112°C which is comparable to the melting point of 2-hexanone (110°C). 5-phenoxy-2-pentanone also has a comparable melting point of 110°C, but after observing the H-NMR spectrum of the two compounds it showed that unknown #6 was 2-hexanone. This is due to the peaks visible at 2.5-2.0 ppm and the peaks at 0.5-1.5 ppm. 5-phenoxy-2-pentanone shows peaks further downfield due to the presence of a double bonded oxygen and an oxygen bonded to a benzene ring.
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