Registration Dossier
Registration Dossier
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EC number: 255-670-9 | CAS number: 42125-46-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
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
Parent compound: A respiration inhibition test was performed with a hydrolsate of the test substance
following OECD 209 under GLP conditions. The 3 -h EC50 was ca. 400 mg/L (BASF AG, 2001).
The test solutions were stirred for 22 ± 2 hours and the pH was adjusted to 7.5 ± 0.5 afterwards.
Due to the expected hydrolysis of the test item, the test results may also cover effects from the hydrolysis products.
The EC20 in the activated sludge respiration inhibition test was >100 mg/l. Therefore,
disturbances in the biodegradation process of activated sludge are
not to be expected
if the test substance is correctly introduced into adapted wastewater treatment plants at low concentrations.
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