Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 828-479-9 | CAS number: 2088841-41-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Four ready biodegradability studies are available with structurally similar substances to EDDHA-FeK: One for EDDHMA-FeNa, one for EDDHMA-FeK, one for EDDHA-FeNa and one for HBED-Fe. The study with EDDHMA-FeNa is not valid, and the study with EDDHMA-FeK is regarded as a false positive result. EDDHA-FeNa has been tested in the OECD 301 A test under GLP according to the guideline meeting all validity criteria. EDDHA-FeNa was biodegraded 10-20% (measured as DOC removal) at day 28. A guideline study performed according to OECD guideline 301D showed less than 10% biodegradation of HBED-Fe after a prolonged incubation time of 60 days (van Ginkel, 2013).
All these structurally related substances are therefore poorly biodegradable under the test conditions.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Biodegradation of the structurally related HBED-Fe, EDDHMA-FeNa, EDDHMA-FeK or EDDHA-FeNa has not been shown in ready biodegradability tests.The lack of biodegradation does not mean that these substances are recalcitrant in nature because the stringency of the test procedures could account for the recalcitrance in these tests.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
