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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 257-573-7 | CAS number: 51981-21-6
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Adsorption coefficient (Koc): < 32 (HPLC, OECD TG 121)
Key value for chemical safety assessment
Additional information
The adsorption coefficient (Koc) of L-glutamic acid diacetic acid tetrasodium salt (GLDA-Na4) was estimated using the High Performance Liquid Chromatography (HPLC) method. The average measured Koc value for GLDA-Na4 in the ionized form (pH 2) as well as in the nonionized form (pH 7) as calculated from the test is < 32 (Log Koc < 1.5). This indicates that GLDA-Na4 will be mobile in soil and not be sorbed by sludge in a sewage treatment plant.
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.
