Abstract
Two Illinois No. 6 coal liquids (SOH and ASOH) were separated into polar and non-polar fractions and the polar fractions were analyzed to identify the phenols by RP HPLC in tandem with 31P NMR spectroscopy of samples derivatized with ClPOCMe2CMe2O (1). The results obtained from both methods complement one another quite well despite numerous cases of more than one phenol displaying equal retention times or the same 31P chemical shift when derivatized with 1. The total amount of phenolic oxygen was quantitatively determined by 31P NMR spectroscopy for both coal liquids. The results agree very well with values reported by others by an FTIR method.
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