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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
no
Analytical monitoring:
yes
Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Test type:
static
Water media type:
freshwater
Key result
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
1.03 mg/L
Nominal / measured:
meas. (initial)
Remarks on result:
other: Diluted in acetone
Key result
Duration:
72 h
Dose descriptor:
EC10
Effect conc.:
0.14 mg/L
Nominal / measured:
meas. (initial)
Remarks on result:
other: Diluted in Acetone
Validity criteria fulfilled:
yes
Conclusions:
In a Study performed to OECD Guideline 201, ferrocene produced an EC50 (72hr) = 1.03 mg/l and an EC10 (72hr) = 0.14 mg/l. The values ​​of the algal growth inhibition are in accordance with the data in and of the same magnitude as the values for daphnia acute toxicity. The samples were diluted in acetone to enable solubilisation

Description of key information

In a study performed to OECD Guideline 201, ferrocene produced an EC50 (72hr) = 1.03 mg/l and an EC10 (72hr) = 0.14 mg/l

Key value for chemical safety assessment

EC50 for freshwater algae:
1.03 mg/L
EC10 or NOEC for freshwater algae:
0.14 mg/L

Additional information

In a Study performed to OECD Guideline 201, ferrocene produced an EC50 (72hr) = 1.03 mg/l and an EC10 (72hr) = 0.14 mg/l.

The values ​​of the algal growth inhibition are of the same magnitude as the values ​​for daphnia acute toxicity