Identification and determination of the main constituents of phenol tar with carbon- and proton-NMR spectroscopy

Abstract

¹³ C and ¹H NMR were employed for the identification and determination of the main constituents of phenol tar from the phenol industrial synthesis process. The carbon and the proton spectra were correlated with each other with a 2D-HETCOR experiment. The presence of cumyl phenyl ether, not previously reported, was found and confirmed by the mass spectrum. ¹H NMR determinations of six compounds were repeated at 100 and 500 MHz and no significant difference in the repeatability and the accuracy between the results was found.