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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

Additional information

Due to the extremely low solubilities in water and in octanol a sensible derivation of a log Pow is not possible forDCB-AAA-AAOT.Nevertheless due to its strong similiarity to the other category pigments the log Pow can be assumed to be below 3.Because of log Pow-values well below 3, according to column 2 of Annex VIII and IX of REGULATION (EC) No 1907/2006 no testing of absorption-desorption behaviour of the substances of the Diarylide Yellow Pigments is required. An absorption/desorption screening test according to OECD 121 (HPLC estimation method) could not be expected to yield any reasonable information.

Therefore, no conclusion on adsorption/desorption behaviour of the Diarylide Yellow Pigments is possible from experimental data. Based on the low log Pow-values no relevant adsorption to soil or sediment is expected.