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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 447-830-3 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Vryenhoef and Mckenzie (2004): The effect of the test material on the growth of Scenedesmus subspicatus was investigated and gave EL50 values of greater than 1000 mg/L loading rate WAF. Correspondingly the No Observed Effect Loading rate was 1000 mg/L loading rate WAF.
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 1 000 mg/L
Additional information
The toxicity of the test material to aquatic algae was examined in a static freshwater test. Scenedesmus subspicatus was exposed to a Water Accommodated Fraction (WAF) of the test material, at a single nominal loading rate of 1000 mg/L (six replicate flasks) for 72 hours, under constant illumination and shaking at a temperature of 24 ± 1 °C.
The study was conducted in accordance with the OECD 201 and EU Method C.3 guidelines. The study was conducted to GLP standard, in a certified laboratory. The study is assigned a reliability score of 1 in accordance with Klimisch et. al. (1997).
The effect of the test material on the growth of Scenedesmus subspicatus gave EL50 values of greater than 1000 mg/L loading rate WAF. Correspondingly the No Observed Effect Loading rate was 1000 mg/L loading rate WAF.
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.
