DETERMINATION OF AQUEOUS SOLUBILITIES OF TETRACHLOROBENZYLTOLUENES INDIVIDUALLY AND IN A MIXTURE BY A MODIFIED GENERATOR COLUMN TECHNIQUE

Aqueous solubilities of nine tetrachlorobenzyltoluenes (TCBTs) were de termined at 25 degrees C using a generator column technique. The aqueo us solubility of 2,2',4,4',6,6'-hexachlorobiphenyl was determined and appeared tb be relatively high, but still comparable with literature v alues of this PCB. Solubility values of TCBTs ranged from 0.00139 to 0 .01829 g.m(-3) Additional aqueous solubilities of the same TCBTs added as a mixture were determined, ranging from 0.00076 to 0.00489 g.m(-3) . No correlations were found between the aqueous solubilities of TCBT isomers, determined individually and in a mixture and between the aque ous solubilities and 1-octanol/water partition coefficients, respectiv ely. Copyright (C) 1996 Elsevier Science Ltd