{HEAD ~ The liquid part} of {TAIL ~ the reaction medium}, under the starting conditions already specified, and within the preferred range of ratio of water to sodium hydroxide, consists of two phases 
of
{ HEAD ~ The liquid part } of { TAIL ~ the reaction medium } , under the starting conditions already specified , and within the preferred range of ratio of water to sodium hydroxide , consists of two phases
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH