Partial solubility parameters of chlorobenzene and chlorophenol compounds at equilibrium distribution in two immiscible phases

Partial solubility parameters of chlorobenzene and chlorophenol compounds a t equilibrium distribution in two immiscible phases such as soil-water syst em were studied. An integral distribution equilibrium equation is derived f rom the concept of partial solubility parameters and Flory-Hungins equation . Twelve chlorobenzenes and nineteen chlorophenols were employed in this st udy and their partial solubility parameters including dispersion ( delta(d) ), and polar van der Waals ( delta(p)), as well as their electron acceptor and donor solubility parameters ( delta(a) and delta(b))were calculated. Hi ldebrand's solubility parameter( delta) of the compounds was also obtained by using boiling point and formula. HPLC was performed by octadecyl-bonded phase as the stationary phase with methanol or acetonitrile as the mobile p hase to determine the capacity factor k' of all compounds for the calculati on of delta(a) and delta(b). (C) 1999 Elsevier Science Ltd. All rights rese rved.