DETERMINATION AND ESTIMATION OF THE SORPTION OF BENZALDEHYDES ON SOIL

The sorption behavior of 13 substituted benzaldehydes on natural soil has been reported for the first time. It is found that most of the sor ption isotherms are nonlinear. The sorption varies greatly with molecu lar structure. Correlations of InKf with logK(ow), logS(w), and severa l other structural parameters show that the electronic effect of subst itute groups is the principal factor controlling the sorption behavior of benzaldehydes. Sorption mechanism is mainly a hydrogen bonding or electron donor-acceptor process except lipophilic partitioning. (C) 19 97 Elsevier Science Ltd.