Summary The ultraviolet absorption spectra of n-hexadecyl mercaptan, n-hexadecyl sulfide, Iz-hexadecyl disulfide, n-hexadecyl trisulfide, and n-hexadecyl tetrasulfide were determined in hexane solution. The spectra of sulfur in hexane and in ethanol solutions were determined. The spectra of the polysulfides have been shown to vary markedly with the sulfur content of the functional group. Spectrometry may be useful in the qualitative ...