Registration Dossier
Registration Dossier
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EC number: 211-367-3 | CAS number: 640-67-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The nominal concentrations of the test item of 1.0, 3.2, 10, 32 and 100 mg/L were tested in parallel with a control. The measured concentrations of Manganese oxalate dihydrate (based on manganese) in the test media of the test concentrations of 3.2 to 100 mg/L were between 97 and 110% of the nominal values at the start of the test and between 94 and 102% at the end of the test. Thus, the correct dosing of the test item Manganese oxalate dihydrate was confirmed.
The biological test results related to Manganese oxalate (correction factor: 1.252 and based on mean measured concentrations) were as follows:
EC50 72h (growth rate): 68.7 mg/L
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 68 mg/L
Additional information
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