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EC number: 213-234-5
CAS number: 931-36-2
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations.
The toxicity of 2 -ethyl-4 -methylimidazole
(CAS 931 -36 -2) to microorganisms was studied in a respiration
inhibition test according to Annex of EEC Directive 88/302/EEC, which
corresponds to OECD Guideline 209 and ISO Standard 8192. Activated
sludge from a wwtp treating municipal sewage was used as the test
system. The 30 -min EC20 was determined to be 650 mg/L, the 30 -min EC50
was > 1000 mg/L (BASF AG, 2005; report no. 08G0379/053111).
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