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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
effects on growth of green algae
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Justification for type of information:
The pre-test for solubility of the test item in demineralised water, algal test medium and M4 medium indicated in a GLP study that the solubility is substantially lower than 1 µg/L in each of the tested matrices.
In non GLP pre-tests the toxicity against daphnia and algae were tested, using a saturated solution. For this, the nominal loading of 100 mg/L was mixed with the corresponding amount of test medium (Daphnia = M4 medium, Algae = algal medium) and stirred for 24 hours. After a settling period of 1 hour, the lower phase of the resulting solutions was used as highest concentrated test solution. No undissolved components were visible. Therefore, the solutions were not membrane filtered.
Additionally, these saturated solutions were diluted 10-fold (10 mg/l) and 100-fold (1 mg/l) with test medium and also tested. The tested concentrations showed no toxicity against daphnia and algae in any of the tested concentrations.
GLP compliance:
no

Description of key information

Key value for chemical safety assessment

Additional information

The study does not need to be conducted because the substance is highly insoluble in water, hence in dicating that aquatic toxicity is unlikely to occur.