Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Not readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

The ready biodegradability of Remazol-Goldgelb RNL was tested in anaerobic bacteria by ISO 11734 method. Methane and carbon dioxide released is determined quantitatively. From the amount of carbon released into the gas is formed in a ratio of carbon used to determine the contents of the rate of anaerobic biodegradation. This test is used for the examination for ultimate anaerobic biodegradability.

A significant anaerobic biodegradation was not observed. The formation of gas within 56 days remained below 10% of the theoretical maximum.

The inherent biodegradability was tested in a Zahn-Wellens test over 28 days. No biodegradation was observed. About 30% of the test substance was eliminated via adsorption to the activated sludge.