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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 815-521-6 | CAS number: 72691-24-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
Key value for chemical safety assessment
Additional information
The acute toxicity of the test substance to microorganisms was investigated in a GLP compliant guideline study according to OECD 209 with domestic activated sludge as inoculum (BASF AG 2001). At test termination after 180 min an EC20 of 100 mg/L (nominal) was derived.
Two additional studies conducted according to OECD guideline 209 support these results with EC20 values ranging from 800 to > 1000 mg/L after 30 minutes [BASF AG 1989, BASF AG 1991]. Another oxygen consumption test according to ROBA comes up with an EC50 value > 10000 mg/L after an exposure period of 17 h [BASF AG 1989].
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.
