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Partition coefficient

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Description of key information

The Yakabe et al study provides a log Pow value of 3.43, at 22°C, for 2,4-TDI.

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
22 °C

Additional information

The use of the log Pow value for water-reactive studies is questionable. However in the study the analyte could be detected and a value for the log Pow was derived. The value may be used for the CSA, although it is only of theoretical value. For a mixture of 80% 2,4-TDI with 20% 2,6-TDI, one sharp peak indicated that both isomers show the same log Pow of 3.43 at 22°C.