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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Toxicity to microorganisms

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L
EC10 or NOEC for microorganisms:
100 mg/L

Additional information

Under the conditions of this present test, 4,4’-Methylene bis (2-chloroaniline) was slightly toxic to waste water (activated sludge) bacteria at a loading rate of 100 mg/l (23% inhibition of respiration rate of the sludge). The 3-hour EC50 of 4,4’-Methylene bis (2-chloroaniline) exceeded a loading rate of 100 mg/l.