Journal
CHEMOSPHERE
Volume 41, Issue 9, Pages 1389-1399Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0045-6535(00)00005-9
Keywords
QSPR; activity; partition; coefficient; octanol; molar volume
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A quantitative structure-property relationship (QSPR) method for the correlation of physical-chemical properties and partition coefficients, namely the 'three solubility' approach, is described and applied to a group of 22 phthalate esters. The solubilities or 'apparent-solubilities' of these substances in the liquid state are compiled and correlated against Le Bas molar Volume in the three primary media of air, water and octanol. From these solubilities the air-water (K-AW), octanol-water (K-OW) and octanol-air (K-OA) partition coefficients are deduced. Estimated solubilities in water and octanol-water partition coefficients are shown to compare favourably with more recent accurate measurements. A set of selected values is presented, with error limits, which is recommended for use in modelling and assessment studies. Some environmental implications are discussed of the large range in property values for this series. (C) 2000 Elsevier Science Ltd. All rights reserved.
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