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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Kow method:

Koc: 4446 L/kg

logKoc: 3.648

Key value for chemical safety assessment

Koc at 20 °C:
4 446

Additional information

Koc of Direct Black 80 was calculated using KOCWIN v2.00., the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).

Direct Black 80 is expected to be a substance with a low potential for adsorption, as confirmed by the partition coefficient log Kow is -2.3 (REACH&Colours, 2012).

Based on REACH regulation annex VIII column 2 (specific rules for adaptation from column 1) the study does not need to be conducted based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol water partition coefficient).

[LogKoc: 3.648]