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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

In an activated sludge respiration inhibition test (aerobic bacteria) there was an effect concentration of EC20 > 100 mg/L, EC50 > 100 mg/L and EC80 > 100 mg/L observed after 3 hours.

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information

The microbial toxicity of the test substance was studied in a growth inhibition test used settled sludge as inoculum acc. to the method described in EEC L 133, p. 118f (1988). The 3h-EC50 was determined to be > 100 mg/L and the 3h-EC20 was determined to be > 100 mg/L (CIBA-GEIGY, 1990).

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