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Ecotoxicological information

Toxicity to microorganisms

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Link to relevant study record(s)

Description of key information

A reliable study (Klimisch 2) was carried out on the readacross substance, imidazolium compounds, 2-C17-unsatd.-alkyl-1-(2-C18-unsatd. amidoethyl)-4,5-dihydro-N-methyl, Me sul...; oleic-acid based IQAC, DMS quaternised (2 constituents). The toxicity to microorganisms from an activated sludge unit was assessed. The 3 hour EC50 was 564 mg/l with a 95% confidence limit of 364 -887 mg/l and the NOEC 308.6 mg/l.

Key value for chemical safety assessment

EC50 for microorganisms:
564 mg/L
EC10 or NOEC for microorganisms:
308.6 mg/L

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