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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Key value for chemical safety assessment

Additional information

A study on the toxicity to aquatic algae for the test substance itself is not available. However, data on an analogous substance are available. A toxicity test according OECD 201 and GLP has been conducted (NOTOX 2002). Selenastrum capricornutum were exposed to the analogue substance for 72 h in a limit test. Due to the low water solubility a saturated solution has been used.

After 72 h no effects within the range of solubility have been observed. Therefore, the EC50 was determined to be > 100 mg/L and the NOEC was determined to be 100 mg/L after 72 h.

To support the results of the analogue substance, a QSAR calculation using the test substance itself has been conducted. Also, the QSAR calculation showed no effects within the range of solubility and supports therefore the results from the analogue substance.

In overall conclusion, it can be stated that the test substance is not acutely harmful to aquatic algae.