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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 207-529-8 | CAS number: 479-27-6
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
In order to test the toxicity to microorganisms of the substance, activated slugde from predominantly domestic sewage plant was exposed to the test solution of five nominal concentrations of the substance (56, 100, 180, 320 and 560 mg/L) , blank control solution and solution with positive reference substance for a period of 3 hours. Dissolved oxygen was recorded and respiration rate were calculated. The test item showed 40.9 % respiration inhibition of activated slugde and an EC50 of 196 mg/L was obtained. The effect value relates to nominal concentration, since no analytical montitoring was performed.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 196 mg/L
Additional information
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.
