Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Link to relevant study record(s)

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.