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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

72h NOEC (Growth Rate) = 6.3 mg/L
72h NOEC (AUC) = 9.5mg/L
72h NOEC (Yield) = 6.3 mg/L
72h LOEC(Growth Rate) = 9.5mg/L
72h LOEC (AUC) = 12.5mg/L
72h LOEC (Yield) = 9.5 mg/L
72h ErC50[3] = 27.6mg/L
72h EbC50[4]= 15.4 mg/L
72h EyC50[5]= 15.5 mg/L

[1]AUC1 (Area Under Curve according to EU Method C.3) means the integral of the biomass. Calculation see under 8.3.
[2]Yield (according to OECD Guideline 201) is defined as the biomass at the end of the exposure period minus the biomass at the start of the exposure period. Calculation see under 8.4
[3]72h ErC50 is the concentration with 50 % inhibition of the growth rate after 72 hours.
[4]72h EbC50 is the concentration with 50 % inhibition of the AUC after 72 hours.
[5]72h EyC50 is the concentration with 50 % inhibition of the Y

Key value for chemical safety assessment

EC50 for freshwater algae:
27.6 mg/L
EC10 or NOEC for freshwater algae:
6.3 mg/L

Additional information