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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

ErC50 = 370 mg/L (the concentration inhibiting the algal growth rate by 50%.)
EbC50 = 220 mg/L (concentration inhibiting the biomass integral by 50%)

Key value for chemical safety assessment

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

Additional information

The following results were determined for the test item (species: Daphnia magna):

NOEC (72 h): 10 mg/L

ErC50 (72 h): 370 mg/L

EbC50 (24 h): 220 mg/L

For the main study eight concentrations ranging from 10 to 1000 mg/L were used. From the measured absorption of each treatment the growth rate and the area under the growth curve were determined.