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Partitioning regularity of nonionic organic mixtures in organic phase/water system

DOI: 10.1007/BF03187021

Keywords: mixed organic pollutants,the partitioning regularity of mixtures,equilibrium partitioning model,C18-Empore disks/water partition coefficient

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Abstract:

The partitioning regularity of nonionic organic mixtures in organic phase/water system is revealed. The equation for calculating the partition coefficients of mixtures (KMD), together with the determination model, is derived from the equilibrium partitioning models (EPMs). Based on these derived equations, the KMD values of 20 mixtures containing halogenated benzenes are obtained. The results show that stronger hydrophobicity of an individual chemical in the mixture results in the stronger hydrophobicity of the mixture and the greater the proportion of this chemical, the stronger the hydrophobicity of the mixture will be. This partitioning regularity is helpful to the study of the toxicity for mixtures and the environmental behavior, such as transfer or accumulation, for mixed organic pollutants.

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