EXPERIMENTAL OCTANOL/WATER PARTITION-COEFFICIENTS OF CHLORINATED PARAFFINS

Octanol/water partition coefficients (K-ow) of chlorinated paraffins (CPs) from a commercial mixture ('Cereclor 60L') were determined using a ''slow-stirring'' method. Log K-ow values for the different congener groups ranged from 5.85 to 7.14. Equilibrium was reached within a few days, and K-ow values were the same at two CP-concentrations. A clear relationship is found between the total number of chlorine and carbon atoms and log K-ow for the CP-congener groups and a series of smaller chlorinated alkanes from the literature.