Registration Dossier
Registration Dossier
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: 252-777-2 | CAS number: 35884-66-3
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Not readily biodegradable:
% Biodegradation (28d, CO2-evolution, average of 2 replicates): 27%
Key value for chemical safety assessment
Additional information
In a CO2 evolution test according to OECD 301 C and EU method C.4-C (440/2008) compliant to GLP (reliability category 1) the test item failed the requirements for ready biodgradability. However, some biodegradation was observed: Biodegradation at the end of the test period (28 days) in the duplicate flasks was 20% and 33% (27% mean). This result points to a potential for inherent biodegradability. In the toxicity control, no inibition of the test item on microbial activity was observed at a concentration of 17 mg/L.
The test was performed with TTP, the organic phosphite ligand of the submission substance Ni(TTP)4, as the nickel complex is not stable in water and a potential for biodegradation is restricted to the oranic part of the complex.
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.
