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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

EC50 (3h) > 1000 mg/l (nominal)
NOEC (3h): 1000 mg/l (nominal)

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L
EC10 or NOEC for microorganisms:
1 000 mg/L

Additional information

A test to evaluate the toxicity of the test item to the activated sludge respiration activity was performed. In the range-finding test three different concentrations of test item, namely 10.0, 100.0 and 1000.0 mg/l, were tested. After 3 hours of incubation at 1000.0 mg/l concentration respiratory rate inhibition was equal to 9.2 %. On the basis of results obtained in the preliminary test, conservatively the definitive test was carried out at five concentrations of test item in a geometric series, namely 95.3, 171.5, 308.6, 555.6 and 1000.0 mg/l as test item. In the final test, after 3 hours of incubation respiration inhibition ranged from 1.2 % (in 171.5 mg/l solution) to 6.6 % (in 1000.0 mg/l solution).