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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

For the constituents of this UVCB substance adsorption to the solid soil phase and suspended particles is expected. Therefore, low mobility in soil can be assumed.

Key value for chemical safety assessment

Additional information

The Koc for this UVCB substance can not be determined experimentally due to its low water solubility and because it is a reaction product consisting of a variety of constituents. Therefore, it is not possible to derive a single Koc experimentally.

Therefore, the adsorption potential was estimated on the basis of the Koc values of the representative components of this UVCB substance. The calculated Koc values derived with KOCwin v.2.00 for the C9 monoalkylated diphenylamine derivatives range from 107900 to 118700 L/Kg for C9 mono-alkylated DPA and 14110000 to 28020000 L/kg at 25°C for C9 di-alkylated DPA (BASF 2017). For di-alkylated DPA the estimation based on Kow method (KOC 28020000) was out of the applicability domain and not further considered.