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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Not readily or inherently biodegradable

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Screening tests for biodegradation of the structural analogue, Reactive Black 5, in water showed that the test substance is not readily or inherently biodegradable. However, Reactive Black 5 is rapidly removed from the dye-bath as shown by decolourisation of the test medium.