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EC number: 205-381-9
CAS number: 139-89-9
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, it has been shown that, under slightly
alkaline conditions or adaptation, biodegradability is considerably
improved. EDTA was >60% biodegradable in an enhanced test using
pre-adapted activated sludge. Therefore, it can be concluded that the
substance is 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.
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