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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 ErC50 value was determined to be 21.4 mg/L in a 72-hour static test with Desmodesmus subspicatus. The NOEC (growth rate) is 9.65 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
21.4 mg/L
EC10 or NOEC for freshwater algae:
9.65 mg/L

Additional information

The acute toxicity of the test item was tested in an algal inhibition test over 72h with Desmodesmus subspicatus. The assay was conducted according to EU method C.3. The test subjects were exposed to nominal concentrations of 4.6, 10, 19.9 and 41 mg/L for 72 h. From the data obtained through the test an ErC50 (based on growth rate) of 21.4 mg/L was determined. The No Effect Concentration (NOEC) based on growth rate is 9.65 mg/L.