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: 244-617-5 | CAS number: 21850-44-2
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The acute to toxicity of the test substance to Selenastrum capricornutum was examined for 72 hr at 20 °C . EC50 was determined after 48 and 72 hr as > 100 mg/l nominal concentration using WAF
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 100 mg/L
Additional information
The acute toxicity of Tetrabromobisphenol A, Bis (2,3 -dibromopropyl ether) to Selenastrum capricornutum was examined by determining the 72 hr EC50 (biomass, growth rate inhibition) at 20°C.
Preliminary investigations of the water solubility of the test sample indicated that it became more soluble with time and other studies indicated no toxicity up to 100 mg/l. A limit test at the highest test concentration was considered most appropriate with WAF prepared at concentrations of 10 and 100 mg/l, stirred for 10 days.
Both 48 and 72 hr EC50 of the test material to Selenastrum capricornutum were estimated as > 100 mg/l (WAF nominal concentration) using the biomass integral and > 100 mg/l (WAF nominal concentration) by growth rate calculation.
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.
