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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 257-036-7 | CAS number: 51181-50-1
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Based on data from EDTA and on comparison to the screening criteria, HEDTA-FeNa is not B or vB. Based on comparison to the criteria in Annex XIII, the substance is also not T.
EDTA (acid form) and its salts are not readily biodegradable according to OECD criteria. It was shown thatunder special conditions like adaptation or slightly alkaline pH, which is realistic under environmental surfacewater conditions, the biodegradability of EDTA is considerable enhanced. In acidic soils EDTA is expected tobe oxidized by Mn(III/IV) hydroxides because the rate is greatly enhanced under acidic conditions. Thereforeit
can be concluded that EDTA is ultimately biodegradable under such environmental conditions.In addition, due to high water solubility and low adsorption, EDTA will eventually leach to ground- and surface waters and not accumulate in soil. Due to pH fluctuations in surface water, moderate substitution rates and the combined photodegradation and biodegradation, all EDTA salts will eventually disappear from surface water. Iron HEDTA is chemically similar to ferric EDTA and thus the two chelates follow the same pathways of degradation, photodegradation and microbial degradation in waste waters, sediments and soils.HEDTA-FeNa is not considered a PBT or vPvB substance.
- Likely routes of exposure:
No data
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.
