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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 205-759-3 | CAS number: 150-39-0
Endpoint summary
Administrative data
Description of key information
Additional information
Information on the substance itself is limited to a single, poorly documented study of inherent biodegradation. A large number of degradation tests are available for EDTA and its salts, a structural analogue of the substance (for justification on read-across see Section 13). Results from OECD guideline tests indicate that EDTA is not readily biodegradable and tests on inherent biodegradability result in low biodegradation rates.
EDTA, and by analogy HEDTA, has been shown that under special conditions like slightly alkaline pH or adaptation biodegradability is considerably improved. EDTA was biodegradable in an enhanced test using pre-adapted activated sludge. Therefore it can be concluded that the substance may be regarded as ultimately biodegradable under such conditions.
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.
