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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Environmental fate & pathways

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

1) Key: HPLC adsorption-desorption study, 2010, K1, OECD & GLP; Log Koc ranged from 4.39 to 4.95 for the 3 main constituents of the substance

Key value for chemical safety assessment

Koc at 20 °C:
45 708.8

Additional information

The adsorption coefficient (Koc) was derived according to the OECD 121 (HPLC) & GLP guidelines (Drake, 2010). Chemical standards with log Koc values ranging from 1.32 to 5.63 were employed to calibrate instrumentation. The log Koc values derived for the 3 main constituents are 4.39, 4.66 and 4.95 for R-59, R-1679 and R-898 respectively (measured at 20°C).

The reported log Koc value for DAPD reported, 4.66, was calculated as the average of the log Koc of the 3 main constituents.

[LogKoc: 4.66]