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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations.

Key value for chemical safety assessment

Additional information

Experimental data on the acute toxicity of CAS 693 -98 -1 to microorganisms are available.

A guideline study according to DIN 38412, part 8 with Pseudomonas putida as test species was performed. In this study the 7-h EC10 value (growth inhibition) for the test item was determined to be about 193 mg/L (BASF AG 9/1890091,1989).

Therefore, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations.