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Partition coefficient

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Description of key information

log Kow = 3.80

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
20 °C

Additional information

The log Kow of the reaction mass of divinylbenzene and ethylstyrene was determined to be 3.80. The HPLC estimation method did not produce chromotographic resolution of the component isomers. However, calculation of log Kow of these components using the structure-fragment method (KOWWIN) indicates similar log Kow values for divinylbenzene (3.80) and ethylstyrene (3.93). The calculation method, as well as reported measured log Kow values (see SS_DVB:Japan 1992), for DVB indicate little difference in log Pow for positional isomers of these substancs. The single value of log Kow resulting from the HPLC estimation is therefore regarded to give a suitable representation of the the log Kow of the closely related components.