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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 700-857-7 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In an algal toxicity study performed in accordance with OECD guideline 201 and GLP, Selenastrum capricornutum was exposed to Alimet at concentrations of 0 (control), 10, 18, 32, 58, 100 and 180 mg (active ingredient)/L (nominal) for 72 hours under static conditions. The low pH (3.7) of the test solution at 180 mg/L has a negative influence on the algal growth. Therefore a second test solution with adjusted pH at 180 mg/L was tested.
The ErC50 (72 hour), without pH adjustment, was determined to be 89 mg (a.i.)/L.
The ErC50 (72 hour), with pH adjustment, wasdetermined to be 130 mg (a.i.)/L.
The No-Observed-Effect-Concentration (NOEC) after 72 hours was calculated to be 58 mg (a.i.)/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 89 mg/L
- EC10 or NOEC for freshwater algae:
- 58
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.
