Registration Dossier
Registration Dossier
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EC number: 233-953-8 | CAS number: 10466-65-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In the absence of ecotoxicity data for this substance data have been read across from a soluble rhenium compound, as is standard practice for the hazard and risk assessment of metals. The EC50 value, expressed as potassium perrhenate, is 241.2 mg/L for growth rate.
Key value for chemical safety assessment
Additional information
Data have been read across from sodium rhenate. Evonik Stockhausen (2010) is a GLP compliant, guideline study and is considered suitable for use as the key study for this endpoint. Five test concentrations were used: 6.25, 12.5, 25, 50 and 100 mg/l. Recovery rates in analytical determinations were between 100% and 104% of nominal. Test results were therefore expressed as nominal concentrations.
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