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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The study (Determination of the toxicity of Hydratropic Alcohol against Desmodesmus subspicatus according to OECD 201 resp. EU C.3) was performed using 5 concentrations ranging from 1.0 to 100 mg/L (nominal).

Significant inhibition of algal growth was observed at the 2 highest concentrations 32 mg/L and 100 mg/L. The EC50 (growth rate) for hydratropic alcohol was determined being 213.41 mg/L, whereas the EC50 based on yield was found being 32.13 mg/L. The NOEC was set to 10 mg/L in this study for both, growth rate and yield.

Key value for chemical safety assessment

EC50 for freshwater algae:
213.41 mg/L
EC10 or NOEC for freshwater algae:
10 mg/L

Additional information