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Identification of Solid Unknown 18 S

Identification of Solid Unknown 18 S

Identification of Solid Unknown 18 S

Solubility Test Results:

Because unknown 18 S was soluble in NaOH but not in NaHCO3, it could be determined that the unknown compound was a phenol. Classification tests were performed to ensure the compound was a phenol.

Classification Test Results:

The classification tests performed confirmed that Unknown 18 S was a phenol. Both tests for the phenol functional group yielded a positive result.

Possible Compounds:

Derivative:

4-nitrophenol α-Naphthylurethane derivative

Observed MP 149.6ºC

Literature MP 150ºC

Through a series of solubility and classification tests, and by generating and finding the melting point of the derivative, Unknown #18 S was determined to be 4-nitrophenol.

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